Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - Chapter Review - 1-9 Patters, Equations, and Graphs: 99

Answer

$y=5+10x$
1500770246

Work Step by Step

Beginning at 15 when x is 1, y increases by 10 each time x increases by 1. To write a formula, find the value when x is 0. SInce y increases when x increases, y will decrease when x decreases. When x is 0, y is 5. $y=5+10x$ To extend the table, add 1 to x and 10 to y in each new row. $\underline{x}\ \ \ \ \underline{\ y\ }$ $1\ \ \ \ \ 15$ $2\ \ \ \ \ 25$ $3\ \ \ \ \ 35$ $4\ \ \ \ \ 45$ $5\ \ \ \ \ 55$ $6\ \ \ \ \ 65$ $7\ \ \ \ \ 75$
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