15. Multiple Representations Graph parallelogram ABCD on a coordinate plane with vertices at A(3, 4),
B(6, 1), C(0, -2), and D(-3, 1).
a. What do you notice about the slopes?

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).

hi,

the area of abcd is 245.

3*24=230

4*94=1039

2*12=24

add all of them up, you get 2450

the answer is  

d.

121π mi^2

hope you got it chief