Answer
$a=-1 $ or $ a=-5$
Work Step by Step
The graph of y=f(x) contains points (x,f(x)).
If $(a,-5)$ is a point on the graph, then
$-5=x^{2}+6x$
$0=x^{2}+6x+5$
$0=(a+1)(a+5)$
$a=-1 $ or $ a=-5$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 2 - Section 2.2 - Graphs of Equations in Two Variables; Intercepts; Symmetry - 2.2 Assess Your Understanding - Page 166: 78
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