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The suggested retail price of a new car is p dollars. The dealership advertised a factory rebate of $1200 and an 8% discount.

A.) write a function R in terms of p giving a cost of the car after receiving the rebate from the factory.
B.)Write a function S in terms of p giving the cost of the car after receiving the dealership discount.

2006-10-13 10:31:36 · 3 answers · asked by totalstuff8 2 in Science & Mathematics Mathematics

3 answers

Rebate is giving back, which is subtraction.
R(p) = p - 1200.

Discount is giving back a percentage, also subtraction. If you discount 8%, 92% of the price is left.
S(p) = 0.92( p - 1200) ....... this assumes factory rebate first, then 8% discount.

If the discount were given first, it would be
T(p) = 0.92p - 1200.

Which one is the better deal depends on p. You can count on the dealship to give the chump -- I mean customer -- the skimpiest deal possible and still make it sound good.

2006-10-13 11:09:16 · answer #1 · answered by Philo 7 · 1 0

R is p minus rebate from factory.

S is p minus 8% of p (if only discount applies to cost of vehicle without rebate).

2006-10-13 17:36:52 · answer #2 · answered by mr green 4 · 0 0

R = p - 1200
S = 0.92(p-1200)

2006-10-13 17:36:30 · answer #3 · answered by ironduke8159 7 · 0 0

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