Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 4 - An Introduction to Functions - 4-4 Graphing a Function Rule - Practice and Problem-Solving Exercises - Page 258: 34

Answer

The point (2, 2.5) is not on the graph of y=x + 2

Work Step by Step

The question gives us a point (2, 2.5) and the equation y=x + 2. So given the point we know that our x value is 2 and y value is 2.5. To check if the point is on the graph we plug in the x value of 2 into the equation y=x + 2 to see if it equals 2.5. y = x + 2 (2.5) = (2) + 2 2.5 ≠ 4 Therefore the point (2, 2.5) is not on the graph of y=x + 2
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