The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May her driving cost was $380 for 300 mi and in June her cost was $500 for 900 mi. Assume that there is a linear relationship between the monthly cost C of driving a car and the distance driven d.
(a) Find a linear equation that relates C and d.

(b) Use part (a) to predict the cost of driving 1600 mi per month.

Question

The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May her driving cost was $380 for 300 mi and in June her cost was $500 for 900 mi. Assume that there is a linear relationship between the monthly cost C of driving a car and the distance driven d.
(a) Find a linear equation that relates C and d.

(b) Use part (a) to predict the cost of driving 1600 mi per month.