Which of the following sets represents the domain of the function shown? {(2, 7}, (15, 13), (21, –4), (24, 18)}

a

{–4, 2, 7, 13, 15, 18, 21, 24}

b

{(7, 2), (13, 15), (–4, 21), (18, 24)}

c

{2, 15, 21, 24}

d

{–4, 7, 13, 18}

false

step-by-step explanation:

a 360 degree rotation

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).