Determine the slope of the line that contains
the points (5, 4) and (5,8).
Select one:
Slope = 4
Slope = 4
Slope = 0
Slope is undefined

11 feet 6 inches and 8 feet 6 inches

idk bring the function back   im not smart

step-by-step explanation:

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).