Answer:
Input 0 and Output -6
Step-by-step explanation:
The reason why is that we know that -4 has a output of -18 which -3 has a output of -15 meaning each time x increases by 1 the output increases by 3. 1:3 ratio basically so since we know this the starting value should be
y=0+3x
The car's velocity at time
is

It comes to rest at

Its velocity over this period is positive, so that the total distance the car travels is

so the answer is D.
16 only goes into 20 once