Answer
$y=2x-3$
Work Step by Step
$y=mx+b$
The slope is 2, therefore the coefficient of $x$ will be 2. (m=2)
$(2,1)$ is a point of the line (if $x=2$ then $y=1$)
$1=2*2+b$
$1=4+b$
Therefore$ b=-3$
So the equation is $y=2x-3$
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 1 - Section 1.3 - Linear Functions and Models - Exercises - Page 91: 62
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