Functional Notation Worksheet
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4Regents Exam Questions A2.A.41: Functional Notation
Name: ________________________
A2.A.41: Functional Notation: Use functional notation to evaluate functions for given values in
the domain
1 If f(x) x
2x 3 , find the value of f(2) .
2
10 If f(x)
29 x
2
, find f(2) .
2 If f(x) 3 x
2
, find f(2) .
x
11 If f x ( )
, what is the value of f(10) ?
2
16
x
5
1)
2
5
3 If f(x) 2x
2
6 , find the value of f(3) .
2)
42
5
3)
58
5
4)
18
4 If f(x) x
2
3x 5 , find the value of f(3) .
12 If f x ( ) x
3
3
, then f 1
( ) is equivalent to
5 If f(x) x
3
2x , find f(2) .
1)
0
2)
2
2
3)
4)
4
6 If f(x) x
2
3x , find f(1.8) .
13 For which equation will f(2) 6 ?
f(x) x
3
x
1)
7 If f(x) 2x
3
4x
2
, find f(3) .
f(x) x
4
5x
2)
f(x) 4x
3
6x
2
x
3)
f(x) 3x
3
4x
2
4x
4)
8 If f(x) (2x)
2
, find f(4) .
9 If f(x)
25 x
2
, find f(3) .
1
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