How can you tell if a function is linear from a table?

Check whether y changes by the same amount each time x goes up by 1. In the linear table on the reference sheet, y goes up 2 every time. In the nonlinear table, y goes up 1, then 3, then 5.

Can a linear function be written as y = mx + b?

Yes. Every linear function can be written in the form y = mx + b and graphs as a straight line that is not vertical. The Linear and Nonlinear Functions Reference Sheet places this beside a curved graph for contrast.

8th Grade Reference Sheets Worksheets

Ages 13-14 · Free previews · Print-ready PDFs

Written by Adi Ackerman, Head Teacher

A function reference sheet is a one page guide that students keep beside their practice. There are 2 reference sheets for 8th grade here, and as handouts they have no answer keys. Functions Reference Sheet defines a function with input and output tables and shows y = 2x − 1 four ways. Linear and Nonlinear Functions Reference Sheet compares the two kinds by graph, table and equation. They support 8.F.A.1 and 8.F.A.3.

8th Grade Math Functions Reference sheets Clear All

$Functions Reference Sheet - 8th Grade Functions worksheet preview$

Functions Reference Sheet

Grade8th Grade

TopicFunctions

$Linear and Nonlinear Functions Reference Sheet - 8th Grade Functions worksheet preview$

Linear and Nonlinear Functions Reference Sheet

Grade8th Grade

TopicFunctions

More functions worksheets

Explore all of our 8th grade functions worksheets, covering what is a function, linear and nonlinear functions, comparing and modeling functions, qualitative graphs, and more.

What is a function Linear and nonlinear functions Comparing and modeling functions Qualitative graphs

Frequently Asked Questions

A function gives each input exactly one output. Two inputs may share an output, but one input can never have two. The Functions Reference Sheet shows both cases in input and output tables.

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