{(-4,5), (-1,-2),(8,4),(9,0),(6,4)}

Domain:
Range:

Domain: -4, -1, 6, 8, 9

Range: -2, 0, 4, 5

Domain can easily be found by looking through the set's x-coordinates.

Range can be found on the y-coordinates.

Repeating numbers just needs one number to be listed (Ex. the range has two 4's but there is only one 4 listed).

Write them in order.

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.