Alex is 9 feet away from his car when he begins walking directly away from his car at a constant speed of 2 feet per second. If Alex is 22 feet from his car, how many seconds have elapsed since he started walking away from his car?

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Alex is 9 feet away from his car when he begins walking directly away from his car at a constant speed of 2 feet per second. If Alex is 22 feet from his car, how many seconds have elapsed since he started walking away from his car?

  • 6.5 seconds
  • 13 seconds
  • 2.2222 seconds
  • 15 seconds
  • 20 seconds
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