COMPASS Practice Test C

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COMPASSPractice Test C

• Algebra Test
• This PowerPoint presentation will present 10
  sample problems with answers. You can save this
  file to your laptop and use it offline.

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C1. If x -2 and y -3, what is the value of
the expression 4x3 - 2xy ?

• A. 36
• B. 20
• C. -20
• D. -36
• E. -44

• 4x3 - 2xy
• 4(-2)3 2(-2)(-3)
• 4(-8) 2(-2)(-3)
• -32 12
• -44
• Answer E

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C2. Which of the following expressions represents
the product of four more than twice x and six
less than x?

• Answer B
• (2x 4)(x 6)
• 2x2 12x 4x 24
• 2x2 8x 24
• Factor the common 2
• 2(x2 4x 12)

• A. x2 4x 12
• B. 2(x2 4x 12)
• C. 8x2 48x
• D. 2x2 16x 24
• E. 2x2 16x 24

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C3. A student earned scores of 85, 76, and 78 on
three of four tests. What must the student score
on the fourth test to have an average (arithmetic
mean) of exactly 80?

• A. 79
• B. 80
• C. 81
• D. 82
• E. 83

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C4. Which of the following is an equation of the
line that contains the points (2, 3) and (4 , 6)?

• D.
• E.

• A.
• B.
• C.

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C4. Which of the following is an equation of the
line that contains the points (2, 3) and (4 , 6)?
Find slope
Now find b
Answer B
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C5. For all x ¹ 6,
A. B. C.
D. E.
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C5. For all x ¹ 6,
Pay close attention to the signs. Every
possibility is covered in the distracters.
Answer D
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C6. Each circle has a diameter of 6. What is the
location of point B the center of the bottom
circle.?

• A. (6, -15)
• B. (6, -18)
• C. (3, -15)
• D. (3, -18)
• E. (1, -3)

6
-15
6
3
(3, -15)
B
3
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C7. For all x, (x2 3x 9)(x - 3) is

• A. x3 3x2 - x - 3
• B. x2 2x - 3
• C. 3x - 3
• D. x3 - 27
• E. x3 - x2 3x - 3

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C7. For all x, (x2 3x 9)(x - 3) is

• (x2 3x 9)(x - 3)
• x3 3x2 9x
• -3x2 - 9x - 27

Answer D
x3 - 27
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C8. If A B 2A 3B, find 4 5

• A. 20
• B. 23
• C. 17
• D. 9
• E. 5

• Substitute
• 2A 3B
• 2(4) 3(5)
• 8 15 23
• Answer B

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C9. What is the perimeter of ?ABC?
B
C

• A. 8
• B. 10
• C. 14
• D. 24
• E. 28

A
14
C9. What is the perimeter of ?ABC?
Count the blocks to find the lengths of the
legs. BC 8 AC 6
B
8
C

• Now use the Pythagorean
• Theorem to find the
• length of the hypotenuse.

6
10
A
Add the three sides to find the perimeter. 8 6
10 24 Answer D
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C10. What is the value of 642/3?

• A. 4
• B. 16
• C. 21.3
• D. 96
• E.

Note that the denominator becomes the index of
the radical
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End COMPASSPractice Test C

• Algebra Test