A manager wishes to predict the annual cost (y)of an automobile based on the number of miles (x)driven. The following model was developed: y = 2,000 + 0.42x. If a car is driven 15,000 miles,the predicted cost is ____________.
A) 2,090
B) 17,000
C) 8,400
D) 8,300
E) 6,300

Question

Quizplus · Accepted Answer

Substitute x= 15,000 into the equation y = 2,000 + 0.42x 
y = 2,000 + 0.42(15,000) 
y = 2,000 + 6,300 
y = 8,300 
Therefore, the predicted cost of a car driven 15,000 miles is $8,300.

A Manager Wishes to Predict the Annual Cost (Y)of an Automobile