Given the function y=40+90x. Which statement represents the meaning of each part of the function? (see change in word problem in description)

A satellite television company charges a one-time installation fee and a monthly service charge. The total cost is modeled by the function y= 40 + 90x . Which statement represents the meaning of each part of the function?

(A) y is the total cost, x is the number of months of service, $90 is the installation fee, and$40 is the service charge per month.

(B) y is the total cost, x is the number of months of service, $40 is the installation fee,and$90 is the service charge per month.

(C) x is the total cost, y is the number of months of service, $40 is the installation fee, and$90 is the service charge per month.

(D) x is the total cost, y is the number of months of service, $90 is the installation fee, and$40 is the service charge per month.

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