Answer
$y=3x+9$
Work Step by Step
We know that if the slope of a line is $m$ and it contains $P_1(x_1,y_1)$, then its equation is: $y-y_1=m(x-x_1).$
Hence, here:
$y-3=3[x-(-2)]\\
y-3=3(x+2)\\
y-3=3x+6\\
y=3x+6+3\\
y=3x+9$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 1 - Graphs - 1.3 Lines - 1.3 Assess Your Understanding - Page 31: 47
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