The ordered pairs (1, 1), (2, 4), (3, 9), (4, 16), and (5, 25) represent a function.
What is a rule that represents this function?
A. y=x^2
B. y=4x
C. y=2x
Soda is on sale for $0.75 a can, and you have a coupon for $0.50 off your total purchase. Write a function rule for the cost of n sodas.
A. C(n)=0.5n-0.5
B. C(n)=0.5n-0.75
C. C(n)=0.75n-0.5
How much would 12 sodas cost? Use the function rule you selected in the first problem of this section.
12 sodas: $__
The rule that represents the function is A. y=x^2.
The function rule for the cost of n sodas is C(n)=0.75n-0.5.
Using the function rule C(n)=0.75n-0.5, 12 sodas would cost $8.50.