Answer
$r(-2)=-5$
$r(0)=-7$
$r(5)=-12$
Work Step by Step
$r(x)=-x-7$
When $x=-2$,
$r(-2)=-(-2)-7=-5$
When $x=0$,
$r(0)=-(0)-7=-7$
When $x=5$,
$r(5)=-(5)-7=-12$
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 3 - Graphing Linear Functions - 3.3 - Function Notation - Exercises - Page 125: 6
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