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Joe bikes 4 kilometers to school . Becau...


Joe bikes 4 kilometers to school . Because of the traffic and road conditions along the way , his speed varies. The dots on the graph above show his distance from the school at various times , starting at home at t=0 (black dot). After 5 minutes Joe is 3.2 kilometers from the school (second black dot). The data show that his speed is almost constant , and his distance from the school can be approximated by a straight line . The graph of the function that models Joe's distance from school as a function of time , in minutes , is shown as a solid line. Which of the following equations best represents this function ?

A

d(t)=-0.5 t+4

B

d(t)=-0.16 t +4

C

d(t)=-6.25 t+4

D

d(t)=0.16 t +4

Text Solution

Verified by Experts

The correct Answer is:
B
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