• #### The Discriminant - Problem 2

How to apply discriminants to word problems.
• #### Antidifferentiation - Problem 2

##### Math›Calculus›Antiderivatives and Differential Equations
How to find an antiderivative of a power function of x.

• #### The Reciprocal Transformation - Concept

##### Math›Precalculus›Polynomial and Rational Functions
How to graph the reciprocal of a linear function.
• #### Proportions - Problem 2

##### Math›Algebra›Solving Equations
How to solve proportions when one numerator is an expression with x.
• #### Percents - Problem 1

##### Math›Algebra›Pre-Algebra
How to solve "What is x percent of?"
• #### Function Notation - Problem 2

##### Math›Algebra›Graphs and Functions
How to evaluate a function for a given x value.
• #### Introduction to Parabolas - Concept

##### Math›Algebra 2›Quadratic Equations and Inequalities
How to talk about a parabola.

• #### Function Notation - Concept

##### Math›Algebra 2›Functions
How to define function notation.
• #### Function Notation - Problem 1

##### Math›Algebra 2›Functions
How to evaluate an equation in function notation.

Tags:
• #### The Discriminant - Problem 1

How to interpret a discriminant that is larger than zero.
• #### Polynomial Function - Concept

##### Math›Algebra 2›Polynomials
How to evaluate a polynomial in function notation.
• #### Trigonometric Identities - Problem 1

##### Math›Trigonometry›Trigonometric Functions
How to use the Pythagorean identity to find cosine and tangent when sine is known.
• #### Introduction to Parabolas - Concept

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to talk about a parabola.

Tags:

Tags:
• #### Trigonometric Identities - Problem 1

##### Math›Precalculus›Trigonometric Functions
How to use the Pythagorean identity to find cosine and tangent when sine is known.
• #### The Definition of the Derivative - Problem 2

##### Math›Calculus›The Derivative
How to estimate the derivative of a function at a point x=a.