Answer
$15$
Work Step by Step
Slope is equal to $\frac{rise}{run}$. This graph increases by $30$ gallons and then goes to the right $2$ minutes, so its slope is $\frac{30}{2}$, which is equal to $15$.
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 2 - Section 2.5 - Linear Functions and Models - 2.5 Exercises - Page 195: 3
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