Which equation represents the graph?

y=75x

Step-by-step explanation:

y = 75x

Step-by-step explanation:

In 4 months, it is at 300. In 9 months, it is at 675. An increase of 375 in 5 months. So you will multiply 75 x 5 to get 375 which is the exact amount.

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).