How to solve it

Question

iVanna is driving to Seattle. Suppose that the remaining distance to drive (in miles) is a linear function of her driving time(in minutes).when graphed ,the function gives a line with a slope of -0.95. Ivanna has 66 miles remaining after 47 minutes of driving. How many miles will be ramaining after 59 minutes of driving?

Answer 1

(47, 66)

B = y - mx

= 66 - (-0.95)(47)

= 66 + 0.95*47

= 110.65

y = -0.95 x + 110.65

x=59 ---> y = -0.95*59+110.65 = 54.6