Instructional Video
Sophia Learning

Sophia: Undefined Algebraic Fractions: Lesson 5

9th - 10th Standards
This lesson will describe why and when a rational expression can be deemed undefined. It is 5 of 5 in the series titled "Undefined Algebraic Fractions."
Instructional Video
Sophia Learning

Sophia: Unreal Roots: Lesson 3

9th - 10th Standards
This lesson will demonstrate how to determine if a quadratic equation has unreal roots. It is 3 of 10 in the series titled "Unreal Roots."
Instructional Video
Sophia Learning

Sophia: Unreal Roots: Lesson 5

9th - 10th
This lesson will demonstrate how to determine if a quadratic equation has unreal roots. It is 5 of 10 in the series titled "Unreal Roots."
Instructional Video
Sophia Learning

Sophia: Unreal Roots: Lesson 7

9th - 10th
This lesson will demonstrate how to determine if a quadratic equation has unreal roots. It is 7 of 10 in the series titled "Unreal Roots."
Instructional Video
Sophia Learning

Sophia: Unreal Roots: Lesson 1

9th - 10th Standards
This lesson will demonstrate how to determine if a quadratic equation has unreal roots. It is 1 of 10 in the series titled "Unreal Roots."
Instructional Video
Sophia Learning

Sophia: Using Substitution: Lesson 2

9th - 10th
This lesson demonstrates how to use substitution to solve a system of equations. It is 2 of 10 in the series titled "Using Substitution."
Instructional Video
Sophia Learning

Sophia: Using Substitution: Lesson 1

9th - 10th
This lesson demonstrates how to use substitution to solve a system of equations. It is 1 of 10 in the series titled "Using Substitution."
Instructional Video
Sophia Learning

Sophia: Using the Quadratic Formula: Lesson 10

9th - 10th Standards
This lesson describes how to use the quadratic formula to determine the solution of a quadratic equation in a specific format. It is 10 of 16 in the series titled "Using the Quadratic Formula."
Instructional Video
Sophia Learning

Sophia: Using the Quadratic Formula: Lesson 13

9th - 10th Standards
This lesson describes how to use the quadratic formula to determine the solution of a quadratic equation in a specific format. It is 13 of 16 in the series titled "Using the Quadratic Formula."
Instructional Video
Sophia Learning

Sophia: Variable in the Denominator: Lesson 11

9th - 10th
How to isolate a variable and solve for its value when the variable is in the denominator of a fraction is the operation discussed in this video. This lesson is 11 of 14 in the series titled "Variable in the Denominator."
Instructional Video
Sophia Learning

Sophia: Variable in the Denominator: Lesson 2

9th - 10th
How to isolate a variable and solve for its value when the variable is in the denominator of a fraction is the operation discussed in this video. This lesson is 2 of 14 in the series titled "Variable in the Denominator."
Instructional Video
Sophia Learning

Sophia: Variable in the Denominator: Lesson 9

9th - 10th
How to isolate a variable and solve for its value when the variable is in the denominator of a fraction is the operation discussed in this video. This lesson is 9 of 14 in the series titled "Variable in the Denominator."
Instructional Video
Sophia Learning

Sophia: Evaluating a Piecewise Function: Lesson 3

9th - 10th Standards
This lesson describes how to use select the proper formula to evaluate the piecewise function and then how to evaluate the function. It is 3 of 11 in the series titled "Evaluating a Piecewise Function."
Instructional Video
Sophia Learning

Sophia: Factoring Negative C: Lesson 2

9th - 10th Standards
This lesson shows you the steps to finding the products of factors of 'a' and 'c' that have a difference of 'b' in a quadratic equation. It is 2 of 11 in the series titled "Factoring Negative C."
Instructional Video
Sophia Learning

Sophia: Unreal Roots: Lesson 2

9th - 10th Standards
This lesson will demonstrate how to determine if a quadratic equation has unreal roots. It is 2 of 10 in the series titled "Unreal Roots."
Instructional Video
Sophia Learning

Sophia: Using Substitution: Lesson 6

9th - 10th
This lesson demonstrates how to use substitution to solve a system of equations. It is 6 of 10 in the series titled "Using Substitution."
Instructional Video
Sophia Learning

Sophia: Finding the Inverse of a Function of a Function: Lesson 2

9th - 10th Standards
In this lesson, you will learn how to follow the steps to find the function of a function and its inverse. It is 2 of 10 in the series titled "Finding the Inverse of a Function of a Function."
Instructional Video
Sophia Learning

Sophia: Moving the Variable: Lesson 7

7th - 8th
Demonstrated in this lesson is that a variable, like a number, has inverses; and what to do with those variables when they have coefficients. It is 7 of 14 in the series titled "Moving the Variable."
Instructional Video
Sophia Learning

Sophia: Multiple Variable Equations: Lesson 3

9th - 10th
In this lesson, the concept covered is that of solving for one or more than one variable in an equation. It is 3 of 9 in the series titled "Multiple Variable Equations."
Instructional Video
Sophia Learning

Sophia: Multiplication and Division in Equations: Lesson 2

9th - 10th
This lesson will explore isolating a variable through multiplying by the inverse when the variable has a coefficient or divisor. It is 2 of 8 in the series titled "Multiplication and Division in Equations."
Instructional Video
Sophia Learning

Sophia: Simultaneous Nonlinear Equations: Lesson 4

9th - 10th Standards
This lesson explains the concept of nonlinear equations, types of solution sets and the number of equations and variables. It is 4 of 5 in the series titled "Simultaneous Nonlinear Equations."
Instructional Video
Sophia Learning

Sophia: Solving Addition Equations: Lesson 14

9th - 10th
This lesson demonstrates how to use the correct format to find the value of a variable in an addition problem. It is 14 of 17 in the series titled "Solving Addition Equations."
Instructional Video
Sophia Learning

Sophia: Solving Algebraic Fraction Equations: Lesson 2

9th - 10th Standards
This lesson covers how rational equations can be solved for a variable, or for a variable in terms of other variables. It is 2 of 11 in the series titled "Solving Algebraic Fraction Equations."
Instructional Video
Sophia Learning

Sophia: Solving an Algebraic Inequality: Lesson 4

9th - 10th
This lesson directs you step by step how to isolate and find the value of a variable in an algebraic inequality. It is 4 of 11 in the series titled "Solving an Algebraic Inequality."