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Question

Mia crosses a river when she drives from her house to the beach. The graph of the function d(t) = 40|t − 1.25| shows Mia’s distance from the river d, in miles, after t hours.

The domain of the function is 0 ≤ x ≤ 2.5. The graph shows her entire trip.

Complete each sentence to make a true statement.

Mia’s distance from the river is decreasing in the interval  Choose... 0 < t < 1.25 or 1.25 < t < 2.5  .

Mia drives  Choose... 40 or 80 or 60 or 100  miles to the beach.

Answer 1

her distance decreases in the interval (0,1.25) or 0<t<1.25

50 then she drives another 50 for 100 total miles