Just part c he monthly cost of driving a car depends on the

he monthly cost of driving a car depends on the number of miles driven. Lynn found that in May her driving cost was mi and in June her cost was sA60 Assume that there is a linear relationsh etween $380 for 480 for 880 mi. the monthly cost Cof driving a car and the distanoex driven. a) ind alinear function c that models the cost of drivingxmies per month. (b) Draw a graph of C. o 200 400 600 B00 1000 1200 1400 200 400 600 800 1000 1200 1400

Solution

Since the slope of the line representing cost of driviing = 1/5,

so, the cost increases by 1/5=0.2 dollars per miles for every additional mile she drives.