Question

A state park charges $5 per car plus $1 per person as an admission fee. The total charged for a car with x people is f(x) = x + 5. How will the graph of this function change if the per car charge is changed to $8 per car?

The line will shift vertically down by $3.
The line will shift vertically up by $3.
The line will shift vertically up by $8.
The line will shift vertically down by $8.

Answer 1

Well the y intercept is $8 from $5, so vertically up by the change in that value makes sense to me.

Answer 2

so c

Answer 3

I mean the end result is going to be x + 8, but it went up by 3, not 8

Answer 4

b

Answer 5

yes