At what values of x, does f(x)=0
a. -4
b. 0
c. 4
d. 2
e. -1
f. 8

Options C, D, E are correct.

Step-by-step explanation:

See the graph shown in the attached file with the question.

It is clear from the graph that it touches the y-axis at three different points.  

So, there will be three different values of x for which f(x) = 0

And those values of x are - 1, 2, 4

Therefore, options C, D, E are correct. ( Answer )

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.

if i did my math right then the answer should but 108