Practice Page
Directions: Read carefully. Use your calculator only for checking.

1.
Given f (x) = 5x - 3, find f (-2).

Choose:
-13
-7
-5
0
man1

 

 

2.
Given g (x) = 3x2 + 2x - 4, find g (1.5).

Choose:
2.5
3.5
5.75
8
man22

 

 

3.
Given h (x) = 3x - 1, find h (a + 3).

Choose:
3x + 8 3a + 2
3x + 2 3a + 8
man2

 

 

4.
If notmath2

Choose:
a
b
c
d
man4

 

 

5.
Given f (x) = 4x - 3 and g (x) = x2 + 2x + 1.

a) Find f (-1).

Choose:
1 -7 -4 0
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b)
Find g (3).

Choose:
6 9 16 12
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c)
Find f (2) + g (-2).

Choose:
14 -2 10 6
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d)
Find domainmath14.

Choose:
1 -1 -2¼
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e)
Find [g (-1)]2.

Choose:
1 2 0 4
man11

 

 

6.
Given f : {whole numbers} {whole numbers}.
The function f accepts a whole number and returns the square of the smallest place value digit in the number.
[Hint: smallest place value digit in 34 is 3.]
man5

a) Find the domain of f.

Choose:
{whole numbers} {0,1,2,3,4,5,6,7,8,9}
{real numbers} {0,1,4,9,16,25,36,49,64,81}
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b)
Find the range of f.

Choose:
{whole numbers} {0,1,2,3,4,5,6,7,8,9}
{real numbers} {0,1,4,9,16,25,36,49,64,81}
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c)
Find f (24).

Choose:
576 2 16 4
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d)
Find f (854).

Choose:
64 25 16 4
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e)
Find f (0).

Choose:
1 2 3 0
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f)
For what value of x is f (x) = 49?

Choose:
497 267 87 73

 

 

7.
Given the function:
   f (x) = 4x + 1.
man3
a) Find f (a).
Choose:
a + 1 4a 4a + 1 a + 4x + 1
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b)
Find f (3c).

Choose:
3c 12c 7c + 1 12c + 1
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c)
Find f (-x).

Choose:
-4x -4x +1 -4x - 1 4x - 1
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d)
Find f (a + 3).

Choose:
4a + 4 4a + 12 4a + 13 4a + 16
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e)
Find f (a + h).

Choose:
4ah + 1 4x + 1 + a + h 4a + h + 1 4a + 4h + 1

 

 

8.
Let g (x) = 2x2 - 3x + 5. Find g (3b).

Choose:
18b2 - 6b + 5 18b2 - 9b + 5
6b2 - 9b + 5 36b2 - 8b + 5
man8

 

 

9.
Let h (x) = (0.5)2x.
Find h (3a).

Choose:
(0.5)2a
(0.5)8a
(1.5)2a
(0.5)6a
man7

 

 

10.
Let f (x) = 3x2 + 1.
Does f (x + h) = f (x) + f (h)?


Choose:
Yes
No
man10

 

 

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