Consider the graph of the quadratic function. Which
interval on the x-axis has a negative rate of change?
-2 to-1
-1.5 to 0
Oto 1
1 to 2.5

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

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