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Functions

Supercharge your thinking with the language of algebra.

45 Lessons333 Exercises

Seeing Solutions

Graphing Solutions

Revealing Patterns

Choosing Values

Continuity

Using Continuity

Diminishing Returns

Intercepts

Up and Down

Minimums and Maximums

Bounded Graphs

Graphs with Gaps

Apply: Training an AI

Rate of Change

Slope and Parameters

The y-Intercept

Horizontal and Vertical Lines

Linear Systems

Finding How Many Solutions

Apply: Rules of Thumb

What is a Function?

Function Tables

Function Graphs

Domain

Range

Interval Notation

Multiple Intervals

Vertical Shift

Horizontal Shift

Vertical Stretch and Shrink

Horizontal Stretch and Shrink

Vertical Reflections

Horizontal Reflections

Transforming Parabolas

Points on Parabolas

Optimizing Revenue

Solving Quadratics

Factored Form

Factoring a Quadratic

Difference of Squares

Perfect Squares

Completing the Square

General Solution

Solving with the Quadratic Formula

Counting Zeros


Course description

This course explores the twin pillars of algebraic thinking—equations and graphs. With these two tools, we'll unpack algebra's big ideas and develop a powerful perspective to solve its essential problems. By the end of this course, you'll understand graphs and their relationship to the equations they represent, enabling you to answer questions involving equations even when it's impossible to solve them by hand. Though a familiarity with solving equations is helpful, we'll start with a review of the basics and build on them throughout the course. When you finish, you'll be ready to conquer a wide range of algebraic techniques in Algebra 1.


Topics covered

  • Algebraic Expressions
  • Coordinate Plane
  • Equations
  • Graphs
  • Linear Equations
  • Ordered Pairs
  • Rates
  • Simplifying
  • Systems of Equations
  • Variables

Prerequisites and next steps

Though a familiarity with solving equations is helpful, we'll start with a review of the basics and build on them throughout the course.


Prerequisites

  • Solving Equations