Math 1 Quiz: Function Notation
Name: _____________________
1) If f ( x)  5 x  2 Find f (4) .
A) 22
B) 18
C) 10
D) 20
C) 36
D) 30
C) 18
D) 14
C) 8
D) 6
2) If g ( x)  4 x 2  6 Find g (3) .
A) 144
B) 138
3) If h( x)  ( x  7) 2 Find h(2).
A) 81
B) 53
4) k ( x)  3x  8 Find x if k ( x)  10 .
A) 22
B) 18
5) f ( x)  2 x  3 Find x if f ( x)  7.
A) -2
B) 2
C) -11
D) 17
6) George cuts grass. He charges a $50 fee just for coming to the house and $10
per hour. Which function below represents the cost, C, as a function of h, the
number of hours it takes to cut the grass?
A) C (h)  60h
C) C (h)  10h  50
B) H (c)  60c
D) C (h)  50h  10
7) Jane needs to figure out how many balloons she needs to order to decorate
for a party. There will be 3 balloons on each table. Write a function for the
number of balloons, B, as a function of the number of tables, t.
A) B(t )  3t
B) T (b)  3b
t
C) B (t ) 
3
3
D) B (t ) 
t