medal question

Question

medal question

disco619 · Answer

The first Option would be correct.

anonymous · Answer

75 cents a can and a 50 cent coupon
C = 0.75n - 0.50     is that a

whpalmer4 · Answer

What's a rule for the price of $n$ cans at $$0.75$ per can?  $$0.75n$, right?  So with the coupon, take that expression and subtract the value of the coupon.

anonymous · Answer

attachment

disco619 · Answer

One cost of Can multiplied by the "n" number of Cans would give us the Total cost of "n" number of Cans. And we save $0.50 on our Purchase so we subtract that from our total cost of "n" number of Cans

whpalmer4 · Answer

@Disco619 exactly.

@naomibell1997 you should ask new questions in a new post, and reward anyone who has helped you find the answer with a medal.

A function is a relationship where there is only one value of the output for each different value of the input.  For example, the first option is NOT a function, because one value of the input (-8) has two different values of the output (-6,4).