The equation is given as C=0.33m+20 where m is the number of miles and C is the cost in dollars.
a. The cost when number of miles is 0.
C=0.33(0)+20=20 dollars.
b. The cost when number of miles is 500 miles.
C=0.33(500)+20=185 dollars.
c. According to the equation given the slope is 0.33 and intercept is 20 from comparing with the general equation y=mx+c.
So the correct option is d.
d. The graph of the given function is
Hence the correct option is d.