Write the equation of the line passing through the given pair of points. (-9, 7) and (-9, -1)

do you mean add both of the equations together

because if you do the answer is 10x-5

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.