Use the graph to answer the question. Which line is perpendicular to the line shown on the graph?
A y=-3/2x+2
B y=-2/3x-4
C. y=2/3x+1
D. y=3/2x+1

x+14

step-by-step explanation:

the first option is the answer.

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).