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Course: Algebra 2 > Unit 10

Lesson 6: Solving equations by graphing
Math
Algebra 2
Equations
Solving equations by graphing
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Solving equations graphically: word problems

Google Classroom

Problem

A piecewise function f can model the height (in meters) of an airplane during a flight. Here is the graph of f, where t is the number of minutes that have passed since takeoff.
The airplane reaches a height of 5000 meters after approximately 4.5 minutes.
What is the other time the airplane reaches a height of 5000 meters?
Round your answer to the nearest ten minutes.
About
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
minutes after takeoff