composition WP 2

use this word prolem for 1-5

You make a purchase at a local hardware store, but what you've bought is too big to take home in your car. For a small fee, you arrange to have the hardware store deliver your purchase for you. You pay for your purchase, plus the sales taxes, plus the fee. The taxes are 7.5% and the fee is $20.

5

write t(x) to represent the taxes

5

Write another function f(x) to represent the fee

10

FInd t(f(x))

10

Find f(t(x))

5

Which function composition would give you the lowest cost?

Use this word peblem for 6 - 10

Kohls is having a sale where everything is 20% off. your mom also gives you a coupon for $10 off.

5

write f(x) to show the 20% off

5

write g(x) to show the $10 off

10

find f(g(x))

10

find g(f(x))

10

what would you pay if you wanted to buy $85 worth of clothes if they take the discount first?

25

composition WP 2

write t(x) to represent the taxes

Write another function f(x) to represent the fee

FInd t(f(x))

Find f(t(x))

Which function composition would give you the lowest cost?

write f(x) to show the 20% off

write g(x) to show the $10 off

find f(g(x))

find g(f(x))

what would you pay if you wanted to buy $85 worth of clothes if they take the discount first?

how are you feeling about word problems?

write t(x) to represent the taxes

Write another function f(x) to represent the fee

FInd t(f(x))

Find f(t(x))

Which function composition would give you the lowest cost?

write f(x) to show the 20% off

write g(x) to show the $10 off

find f(g(x))

find g(f(x))

what would you pay if you wanted to buy $85 worth of clothes if they take the discount first?

how are you feeling about word problems?