Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 2 - Functions, Equations, and Graphs - 2-3 Linear Functions and Slope-Intercept Form - Practice and Problem-Solving Exercises - Page 78: 20



Work Step by Step

The question defines two variables for the line. The slope (m), and the y-intercept (b): m=0 and b=-2. In order to write the equation for a line containing those requirements, one must use the slope-intercept form: y=mx+b. 1. y=mx+b 2. Plug in known values: y=(0)x+(-2) 3. Simplify: y=-2. Because the slope is zero, this is a horizontal line with a y-intercept at -2.
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