Question

PLZ HELPThe line of best fit for a set of data is y = 0.39x + 45, where y represents total cost of a utility bill and x represents hours of usage. Using this linear model, what does the slope of the line represent?

A.
The flat fee is $45 for a utility bill.

B.
A utility bill will cost $45.39 each month.

C.
The cost for each hour of usage is $45.

D.
The cost for each hour of usage is $0.39.

Answer 1

The question is not clear.