Answer
12
Work Step by Step
The instantaneous rate of change at every point of a linear function $f(x)=mx+b$ is $m$.
Here, $f(t)=12t-7$. Therefore, the instantaneous rate of change at every point is 12.
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 2 - Limits - 2.1 Limits, Rates of Change, and Tangent Lines - Exercises - Page 45: 12
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