Question

A certain store is having a sale on all the items.All items are 15% off.In addition,you have a coupon for 100 pesos off in any items because you were the 1 millionth customer
*Write a function that represents the sale price.(Use f(x) that represents the sale price.)

*What function will represent the coupon discount?(Use g(x) that represents the coupon discount.)​

Answer 1

Answer:

f(x) = 0.85x

g(x) = 0.85x - 100

Step-by-step explanation:

Given that :

Sale price = 15% off the item price

Let original price = x

Hence, sale price = (100 - 15)%

Let the sale price function = f(x)

f(x) = 0.85x

Where, x = price before 15% off

Customer also has a coupon discount of 100 pesos

Let coupon discount price = g(x)

g(x) = f(x) - 100

Hence,

g(x) = 0.85x - 100

x = price before 15% off