Question

When going to the local swimming pool, you will pay $9 per person and $3 for parking. If y represent the total cost and x represents the number of persons, what is the function rule that describes this pattern?
A. y = 9x + 3
B. y = 9x – 3
C. y = –9x + 3
D. y = –9x – 3

Answer 1

A.
It cost 9 dollars per person so 9x
and you need to add the additional 3 dollars for parking

so   y    =    9x  +    3
     total    entry     parking