Linear equations and functions

Progress
Graphing proportional relationships
Solutions to linear equations
Quiz 1
5 questions
Intercepts
Slope
Quiz 2
5 questions
Intro to slope-intercept form
Graphing slope-intercept form
Writing slope-intercept equations
Quiz 3
5 questions
Functions & function notation
Linear models
Comparing linear functions
Constructing linear models for real-world relationships
Recognizing functions
Linear and nonlinear functions
Quiz 4
9 questions
Unit test
15 questions

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Test your understanding of Linear equations and functions with these 15 questions.
About this unit
Linear equations like y = 2x + 7 are called "linear" because they make a straight line when we graph them. These tutorials introduce you to linear relationships, their graphs, and functions.