Answer
$66.7$ miles
Work Step by Step
a) We plot the function as shown below.
b) According to the graph, you have to be at least $66.67$ feet up to see $10$ mi (the intersection point with $y=10$ on the graph).
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 1, Equations and Graphs - Section 1.9 - Solving Equations and Inequalities Graphically - 1.9 Exercises - Page 159: 48
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