On a coordinate plane, a trapezoid has points A double-prime (negative 4, negative 2), B double-prime (negative 2, negative 1), C double-prime (negative 2, negative 4), D double-prime (negative 4, negative 3). What are the coordinates of the vertices of the pre-image given? ry= −x ◦ T1, −2(x, y) A=
B=
C=(3,4)
D=

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).