Explainers [1–100 of 157 explainers]

• Percent of a Number
• Surface Area of a Rectangular Prism
• Proportional and Nonproportional Relationships
• Inequalities on a Number Line
• Multiplication and Division Equations
• Rate of Change
• Slope–Intercept Form of a Line
• Factoring Monic Quadratics
• Solving Inequalities by Adding or Subtracting
• Complex Number Conjugates
• Adding and Subtracting Time
• Percentage Equations
• Equating, Adding, and Subtracting Complex Numbers
• Writing Inequalities
• Argand Diagram
• Modulus of a Complex Number
• Rate of Change
• Solving Quadratic Equation with Complex Roots
• Introduction to Complex Numbers
• Evaluating Numerical Expressions Using the Distributive Property
• Purely Imaginary Numbers
• Finding an Unknown Matrix
• Converting Customary Units of Capacity
• Dividing Positive and Negative Fractions
• Ordering Rational Numbers
• Number of Solutions to a System of Linear Equations
• Converting Customary Units of Length
• Converting Customary Units of Weight
• Scientific Notation
• Direct Variation
• Powers and Exponents
• Determining the Slope of a Line from a Graph, a Table, or Coordinates
• Multiplying and Dividing Complex Numbers
• Determining Whether a Function Is a Polynomial and Stating Its Degree
• Dividing Fractions
• Transpose of a Matrix
• Scalar Multiplication of Matrices
• Solving Simple Unit Rate Problems
• Multiplying Fractions by Fractions
• Finding the Prime Factorization of a Composite Number
• Using Integers to Represent Real World Data
• Tables of Equivalent Ratios
• Graphs of Simple Rational Functions
• Solving Problems Involving Geometric Sequences
• Solving Equations Involving Radicals
• Finding the Magnitude of a Vector
• Roots of Monomials
• Finding Limits When Substitution Fails 1
• Finding General Formulae for Geometric Sequences
• Finding the Equation of a Polynomial from a Sketch
• Solving Nonlinear Polynomial Inequalities
• Finding Limits When Substitution Fails 2
• Finding Inverses of Functions
• Solving Linear Inequalities with a Variable on Each Side
• Comparing and Ordering Integers
• Finding Limits by Substitution
• Finding Probability Using Permutations
• Finding the Equation of Linear Graphs
• Mean Absolute Deviation
• Identifying Polynomials
• Adding and Subtracting Radicals
• Definition of Functions
• Multiplying Monomials
• Graphs of Polynomials in Factored Form
• Writing and Evaluating Polynomial Expressions
• Factoring the Difference of Two Squares
• Using the Distributive Property on Algebraic Expressions
• Simplifying Radicals
• Solving a System of Three Equations Using Matrices
• Dividing Monomials
• Introduction to Solving Linear Inequalities
• Changing the Base of Logarithms
• Combining the Skills of Finding the Volume and Surface Area of a Cylinder
• Arithmetic Sequences
• Multiplying the Difference of Two Squares
• Finding a Function Value and Completing a Function Table
• Inverting 2 × 2 Matrices
• An Introduction to Arithmetic Sequences
• Surface Area of a Cylinder
• Adding and Subtracting Polynomials
• Performing Multiplication and Division on Numbers Expressed in Scientific Notation
• Simplifying Polynomial Expressions
• Completing the Square
• Percentage Change
• Volume of a Cone
• Powers of Monomials
• Introduction to Geometric Sequences
• Domain and Range of a Function
• Using Exponential Functions
• Graphing Cubic Functions
• Finding the Median of a Data Set
• Matrix Multiplication
• Lateral and Total Surface Areas of Triangular Prisms
• Introduction to the Pythagorean Theorem
• Establishing Continuity
• The Absolute Value of Integers
• Partial Fractions When the Denominator Has Nonrepeated Linear Factors
• Introducing the Mean of a Data Set
• Writing the Equation of a Circle That Passes Through Three Points
• Finding the Range of a Data Set