The function f(x) = 1.50x + 12.50 relates how much Kelsey pays for digital service, f(x), to the number of movies, x, she streams in a month. What is the value and meaning of f(18)? (5 points)

A $27.00; this is the amount Kelsey pays for 18 movies in 1 month
B $39.50; this is the amount Kelsey pays for 18 months of service
C $27.00; this is the amount Kelsey pays for 18 months of service
D $39.50; this is the amount Kelsey pays for 18 movies in 1 month

Question

The function f(x) = 1.50x + 12.50 relates how much Kelsey pays for digital service, f(x), to the number of movies, x, she streams in a month. What is the value and meaning of f(18)? (5 points)

	A $27.00; this is the amount Kelsey pays for 18 movies in 1 month
	B $39.50; this is the amount Kelsey pays for 18 months of service
	C $27.00; this is the amount Kelsey pays for 18 months of service
	D $39.50; this is the amount Kelsey pays for 18 movies in 1 month

polymorphism · Answer

What one do you think is correct?   1.50 * 18 + 12.50 = ?

sierra_tibbetts · Answer

I think that it is either A or D 
@Polymorphism

polymorphism · Answer

It is going to be B or D because 1.50 * 18 + 12.50 = 39.50

polymorphism · Answer

What one do you think it is?

polymorphism · Answer

Also, notice that I put 18 where the x was at.