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Math·Algebra·Linear functions

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Quinidra drove her car on a straight road to a certain location. The graph models Quinidra’s distance, in miles, from her home as a function of time, in hours. Which of the following could the model describe?

A

Quinidra drove away from her home at a constant speed for 1 hour, spent 4 hours at the location, then continued to drive away from her home at a constant speed for 1 hour.

B

Quinidra drove away from her home at a constant speed for 1 hour, spent 4 hours at the location, then drove back to her home at a constant speed for 1 hour.

C

Quinidra drove away from her home at an increasing speed for 1 hour, spent 4 hours at the location, then drove back to her home at a decreasing speed for 1 hour.

D

Quinidra drove away from her home at an increasing speed for 1 hour, drove at a constant speed for 4 hours, then drove back to her home at a decreasing speed for 1 hour.