Answer
$y=3x$
Work Step by Step
$y=mx+b$
The slope is 3, therefore the coefficient of $x$ will be 3. (m=3)
$(1,3)$ is a point of the line (if $x=1$ then $y=3$)
$3=3*1+b$
Therefore$ b=0$
So the equation is $y=3x+0=3x$
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: 61
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