It should be A. You would keep the 5, and the exponent should be 4+8, which is 12.
8/2 = 4
answer: it will take Carlos 4 hours to walk 8 miles
Proportional and linear functions are almost identical in form. The only difference is the addition of the “b” constant to the linear function. Indeed, a proportional relationship is just a linear relationship where b = 0, or to put it another way, where the line passes through the origin
Slope= 5
X-intercept= -5/5 = -1
Y-intercept= 5/1 = 5.0000000
