Step-by-step explanation:
it is a simple addition and subtraction sequence :
10 + 0 + -21 + 14 = 3
since the result is positive, it is overall a gain.
if the result were negative, it would be an overall loss.
so, he had an overall gain of 3 yards.
(0, 3) so b = 3 and slope = -5/4
equation
y = -5/4x + 3
answer
B. y = -5/4x + 3
It would take 10 hours just like it did for Karl .
