Question

an outdoor swimming pool costs $9 per day to visit during the summer. there is also a $25 yearly registration fee. is the total proportional to the number of days visited? make a table then explain why or why not this proportional relationship

Answer 1

No

Explanation:

cost=25+8d

To be proportional you'd have to have no flat fee: cost=8d

1 day = $8

2 days = $16

5 days = $40

10 days = $80, etc.

I hope I helped.

Answer 2

no

Explanation:

Since there is a $25 yearly registration fee, the total price will never be directly proportional to the number of days visited because if the number of days visited is multiplied by 9, it will have a leftover yearly registration fee, which cannot be accounted for unless written with a function. See the attached image for a table.