Learn how to solve polynomial equations through the use of factoring. We discuss numerous examples in this lesson involving sum and difference of 2 cubes, factoring by grouping, as well as factoring when in "quadratic form." This video is one of the les...

From Mario's Math Tutoring

Learn how to calculate probability with this defective units example problem by Mario's Math Tutoring. We use combinations to solve these probability problems. We go through 3 parts calculating the probability that all 4 units chosen are good, exactly 2 ...

From Mario's Math Tutoring

Learn how to factor trinomials when the leading coefficient does not equal 1. We discuss the guess and check method (trial and error) as well as the ac method and splitting the middle term and factoring by grouping. We also discuss how to solve equations...

From Mario's Math Tutoring

Learn how to calculate percent discount as well as percent markup problems in this video math tutorial by Mario's Math Tutoring. We discuss 2 different methods to solve these problems. We go through examples where we solve for the original amount or the...

From Mario's Math Tutoring

Learn how to graph systems of Linear Inequalities. We discuss graphing 2 linear inequalities as well as 3 inequalities and finding the solution. We discuss the difference between greater than, greater than or equal to, less than, and less than or equal ...

From Mario's Math Tutoring

Learn how to find the percentage of a number using mental math in this math video tutorial by Mario's Math Tutoring. We discuss techniques for taking 1%, 10%, 25%, 33%, 50%, 66% of a number as well as multiples of these. We go through numerous examples ...

From Mario's Math Tutoring

Learn what slope is and how to find it both using a graph as well as given 2 coordinates. We discuss how to find the missing coordinate when given the slope and another point. Also we go over the slopes of parallel and perpendicular lines.
0:20 What is...

From Mario's Math Tutoring

Learn how to work with centroids in this geometry tutorial by Mario's Math Tutoring. We discuss how the centroid divides up the 3 medians in a triangle into 1/3 and 2/3 of it's length. We go through a number of examples in this video.
0:13 What is a Ce...

From Mario's Math Tutoring

Learn how to rewrite equations and formulas in this learn Algebra 2 video math tutorial by Mario's Math Tutoring. We discuss how to rewrite literal equations to solve for y or a particular variable.
0:49 Solve for r. V=(4/3)pi(r)^3
2:36 Solve for y in...

From Mario's Math Tutoring

Learn how to rewrite literal equations to solve for a specific variable in this video by Mario's Math Tutoring. We go through 4 examples and we discuss techniques for isolating a particular variable. One of the examples involves factoring to solve for t...

From Mario's Math Tutoring

Learn how to write a quadratic equation in vertex form by completing the square in this video by Mario's Math Tutoring. We discuss Quadratic equations that have a leading coefficient of 1 as well as quadratics that have a leading coefficient that is not ...

From Mario's Math Tutoring

Learn how to graph horizontal and vertical lines given the equation. We discuss ways to get the graph by making a table of values as well as discussing the equations of the x and y axis in this video by Mario's Math Tutoring.
0:14 Example 1 Graph x=2
0:...

From Mario's Math Tutoring

Learn how to graph given the Double Intercept form of the equation of a line. Also, learn how to write the double intercept form of a line given the graph. We discuss why and how the formula works and go through two examples in this video by Mario's Mat...

From Mario's Math Tutoring

Solve Systems of Linear Equations containing fractions or decimals in this video math tutorial by Mario's Math Tutoring. We discuss how to clear the denominators to make the systems easier to solve. In the case of decimals we discuss how to clear the dec...

From Mario's Math Tutoring

Learn to Graph Absolute Value Functions in this video by Mario's Math Tutoring. We discuss how to graph the parent function as well as transformations such as stretching, compressing, reflecting and shifting absolute value functions. We discuss the mor...

From Mario's Math Tutoring

How to graph Natural Logarithmic Functions. We discuss how to graph the parent function natural log (y=lnx) as well as translations of of the basic graph. We discuss the domain and range as well as the vertical asymptote in this video. Also the relatio...

From Mario's Math Tutoring

Learn about inverse functions in this complete guide. We discuss how to find the inverse of a function intuitively as well as algebraically. We discuss inverse function notation as well as the graphic interpretation of the inverse. In addition, know how...

From Mario's Math Tutoring

3 Story problems involving systems of linear equations in two variables. We discuss how to write the 2 equations in 2 variables as well as how to solve the equations using the substitution method and the elimination method. We also discuss tips on selec...

From Mario's Math Tutoring

Learn how to add and subtract rational expressions in this video lesson. We go through examples that involve factoring, finding a common denominator and then either adding or subtracting the numerators to combine into one fraction. Oftentimes the ration...

From Mario's Math Tutoring

Given an equation tell whether y is a function of x. We discuss different ways of deciding whether for every input there is exactly one output. We go over the graphing method, rewriting the equation solving for y, as well as testing values. We go throu...

From Mario's Math Tutoring

Write an Exponential Equation when you are given a table of values. We discuss the form of an exponential equation. We discuss what the a value and b value represent in y=ab^x as well as how to find these values. We also discuss how to check your answe...

From Mario's Math Tutoring

Learn how to write a depreciation linear equation given a word problem. We discuss the slope intercept form of a line to write the straight line depreciation story problem example given. We go over how to coordinatize the data into points and use the sl...

From Mario's Math Tutoring

Learn how to write the standard equation of a sphere given the center and radius. Also learn how to identify the center of a sphere and the radius when given the equation of a sphere in standard form. We go through 2 examples and one introductory exampl...

From Mario's Math Tutoring

Dimensional Analysis tutorial video to help you learn how to convert units. We go through 3 example problems discussing techniques for remembering how to convert various units in both the metric and english systems. By using conversion factors and multi...

From Mario's Math Tutoring

How to Sketch a Graph Given Parametric Equations with the orientation indicated on the graph. Also learn how to eliminate the parameter and write the 2 parametric equations as a single equation with 2 variables. We discuss 3 examples in this video. The ...

From Mario's Math Tutoring

How to Graph Lines in Slope Intercept Form (y=mx+b). We go through 7 examples in this lesson by Mario's Math Tutoring.
0:07 Slope Intercept Form
0:46 Example 1 Graph y=2x-3
1:57 Example 2 Graph y=-x+4
3:30 Example 3 Graph y=5
4:22 Example 4 Graph y=1/2 ...

From Mario's Math Tutoring

Write a Linear Equation given a table. We discuss 5 examples for writing an equation in slope intercept form in this video tutorial by Mario's Math Tutoring.
0:07 Form of a Linear Equation
0:41 Example 1
0:43 Analyzing the change in y and change in x
1...

From Mario's Math Tutoring

Learn how to write a biconditional statement and how to break a biconditional statement into its conditional statement and converse statement. This is a free math tutorial by Mario's Math Tutoring.
0:13 What is a Conditional Statement
0:23 What is the C...

From Mario's Math Tutoring

Learn how to exponentiate to solve logarithmic equations in this free math video tutorial by Mario's Math Tutoring.
0:11 Example 1 log(base 3)(2x) = 2
0:23 Explanation of Exponentiation and How it Works
0:59 Example 2 (-1/2)log(base 4)(3x) = -2
2:09 Exam...

From Mario's Math Tutoring

Learn how to solve proportions using 3 different methods in this free math video tutorial by Mario's Math Tutoring.
0:14 What is a Proportion?
0:55 Method 1 Example 1 4/7 = x/21
1:25 How to Check Your Answer
1:40 Method 1 Example 2 9/x = 1/4
2:12 Method ...

From Mario's Math Tutoring

Learn how to rationalize more challenging radicals in this free math video tutorial by Mario's Math Tutoring.
0:08 Example 1 Rationalize 3/(Cube Root of x)
1:23 Example 2 Rationalize 5/(4th Root of (4x^3))
2:53 Example 3 Rationalize Cube Root of ((8x^2y)...

From Mario's Math Tutoring

ACT Math live session. We will be going over 4 typical questions and may have time for questions and answers. For more help preparing for the math section of the ACT check out my Huge ACT Math Review Video Course here: https://mariosmathtutoring.teachable...

From Mario's Math Tutoring

Learn how to simplify expressions involving negative exponents in this free math video tutorial by Mario's Math Tutoring.
0:21 Quick Review of Rules of Exponents
0:52 Intro Example with Negative Exponent x^-2
1:33 Intro Example (5/7)^-2
2:04 Example 1 (...

From Mario's Math Tutoring

Learn how to use Descartes Rule of Signs through these examples in this free math tutorial by Mario's Math Tutoring.
0:10 Example 1 f(x)=3x^5-2x^4+x^3-4x-8
0:12 Analyze Sign Changes
0:42 Make a Positive, Negative, Imaginary Chart
1:11 Replace x with (-x)...

From Mario's Math Tutoring

Learn how to divide polynomials using polynomial long division in this free math video tutorial by Mario's Math Tutoring.
0:12 Example 1 (4x^2 - 2x + 3)/(x - 1) Using Polynomial Division
1:43 What to do with the Remainder
2:13 Example 2 (6x^2 - 3x +9)/(3...

From Mario's Math Tutoring

How to tell whether a triangle is acute, right, obtuse, or not even a triangle at all. We discuss a number of examples in this free math video tutorial by Mario's Math Tutoring.
0:11 How to Know if a Triangle is Right, Acute or Obtuse Formula
1:00 Exampl...

From Mario's Math Tutoring

Learn how to write the equation of a circle in standard form in this free math video tutorial by Mario's Math Tutoring.
0:08 Standard Form of the Equation of a Circle
0:34 Example 1 Write the Standard Form of a Circle with Center(-2,0) Radius 16
2:32 Exa...

From Mario's Math Tutoring

Learn how to find distance and midpoint in 3 dimensions. We discuss the similarities and differences between the formulas for distance and midpoint in 2 dimensions and in 3 dimenisional space. We go through 1 example problem together with the opportunit...

From Mario's Math Tutoring

Learn how to multiply matrices in this free math video tutorial by Mario's Math Tutoring.
0:13 Identifying the Dimensions (Rows and Columns) of a Matrix
0:37 How to Know if You Can Multiply the Matrices Together
1:00 How to Multiply the Matrices
1:39 Wor...

From Mario's Math Tutoring

Learn how to find the number of distinguishable permutations of the letters in a given word avoiding duplicates or multiplicities. We go through 3 examples with a bonus example. We discuss factorials and how to simplify factorial expressions.
0:11 Ex...

From Mario's Math Tutoring

Learn how to write an explicit formula for an arithmetic sequence in this free math video tutorial by Mario's Math Tutoring.
0:09 What is an Arithmetic Sequence
0:26 What is the Common Difference
0:52 Identify the Term Number Versus the Value of the Term...

From Mario's Math Tutoring

Learn how to multiply radical expressions in this tutorial by Mario's Math Tutoring. We go through an introduction of how to multiply numbers and square roots, square roots and square roots, etc. We also go through 7 example problems to help you practice...

From Mario's Math Tutoring

Learn how to write an explicit formula for a geometric sequence in this free math video tutorial by Mario's Math Tutoring.
0:11 What is a Geometric Sequence
0:39 What is the Ratio
0:52 How to Identify the Term and the Term Value
1:21 How to Find a Specif...

From Mario's Math Tutoring

Learn how to factor trinomials with a leading coefficent by splitting the middle term and factoring by grouping in this free math tutorial by Mario's Math Tutoring. This method is sometimes called the ac method.
0:16 How to Factor Trinomials With Leadin...

From Mario's Math Tutoring

Learn about the Fundamental Counting Principle also known as the multiplication counting principle in this video by Mario's Math Tutoring. We discuss 2 word problems that involve finding the total number of outcomes or possibilities. This concept is an ...

From Mario's Math Tutoring

Learn how to draw an angle in Standard Position both in Degrees and in Radians in this math tutorial by Mario's Math Tutoring. We discuss what the initial ray and terminal ray represent. We draw positive and negative angles. We also draw angles that inv...

From Mario's Math Tutoring

Learn about permutations, combinations, factorials and probability in this math tutorial by Mario's Math Tutoring. We discuss the formulas as well as go through numerous examples. We discuss the multiplication counting principle as well as distinct permu...

From Mario's Math Tutoring

Learn how to simplify factorial expressions in this video math tutorial by Mario's Math Tutoring. We discuss what a factorial is and how to simplify one. We also discuss some common factorials you want to know as well as some common mistakes to avoid. ...

From Mario's Math Tutoring