Answer
$y-4=2(x-1).$
Work Step by Step
We know that by the Slope Formula: if $P_1(x_1,y_1)$ and $P_2(x_2,y_2)$ are on a line, then the slope is: $m=\frac{y_2-y_1}{x_2-x_1}$.
Hence here: $m=\frac{8-4}{3-1}=2.$
Hence here: $y-4=2(x-1).$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 4 - Section 4.2 - Building Linear Models from Data - 4.2 Assess Your Understanding - Page 287: 2
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