Asked by Danielle
You have a $50 coupon from the
manufacturer good for the purchase of a cell phone. The store
where you are purchasing your cell phone is offering a 20%
discount on all cell phones. Let x represent the regular price of
the cell phone.
(a) Suppose only the 20% discount applies. Find a function f
that models the purchase price of the cell phone
(b) Suppose only the $50 coupon applies. Find a function g
that models the purchase price of the cell phone as a function
of the sticker price x.
(c) If you can use the coupon and the discount, then the purchase
price is either (f o g) (x) or (g o f) (x) , depending on the
order in which they are applied to the price. Find both... Which composition gives the lower
manufacturer good for the purchase of a cell phone. The store
where you are purchasing your cell phone is offering a 20%
discount on all cell phones. Let x represent the regular price of
the cell phone.
(a) Suppose only the 20% discount applies. Find a function f
that models the purchase price of the cell phone
(b) Suppose only the $50 coupon applies. Find a function g
that models the purchase price of the cell phone as a function
of the sticker price x.
(c) If you can use the coupon and the discount, then the purchase
price is either (f o g) (x) or (g o f) (x) , depending on the
order in which they are applied to the price. Find both... Which composition gives the lower