9.1 Review Worksheet (continued)
Given f ( x ), graph g ( x ). 25. = + f x x ( )
x
−
1 2
1 2
26. f x
g x 2and ( )
f x
= − 4and ( ) 3 ( ) g x f x
( )
(2 )
=
= −
27. The amount that a caterer charges to cater a party for n people is given by the function C n n n n n ( ) 18 if 50 400 10 if 50 . = ≤ + > a. During a sale, the caterer reduces the amount charged by 10%. Find the function for how much the caterer will charge during the sale.
b. If the caterer then decides to take an additional $2 off per person, find the function for how much the caterer will charge.
258
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