Which point is an x-intercept of the quadratic function f(x) = (x – 4)(x + 2)? O (-4,0)
O (-2, 0)
O (0,2)
O (4,-2)

(-2,0)

Step-by-step explanation:

the x-intercept is when the y = 0 and you have to make one of them has to equal to 0 ;  (4,0) or (-2,0) and the only one is (-2,0).

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.