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1. |
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B. |
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Hint |
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2. |
Find  [6,3,-1]. |
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B. |
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D. |
[3 3 -1] |
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3. |
Write the translation matrix for  and its image  |
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4. |
Find  |
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5. |
For which value is a dilation with that scale factor a congruence transformation? |
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A. |
2 |
B. |
1 |
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C. |
0 |
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6. |
Which letter shown has only one line of symmetry? |
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A. |
O |
B. |
A |
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C. |
P |
D. |
X |
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Hint |
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7. |
What are the coordinates of A´ if trapezoid ABCD is reflected over the x-axis? |
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A. |
A'(7, 5) |
B. |
A'(-7, -5) |
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C. |
A'(7, -5) |
D. |
A'(-7, 5) |
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Hint |
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8. |
A triangle has vertices M(-3, 6), N(-3, 3), and O(0, 3). Find the coordinates of the dilated triangle M´N´O´ if the scale factor is  . |
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A. |
M´(-1, 2), N´(-1, 1), O´(0, 1) |
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B. |
M´(-1, 6), N´(-1, 3), O´(0, 3) |
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C. |
M´(-9, 18), N´(-9, 9), O´(0, 9) |
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D. |
M´(1, -2), N´(1, -1), O´(0, -1) |
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Hint |
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9. |
Triangle QRS has vertices Q(5, 3), R(3, 7), and S(1, 2). Find the coordinates of the image of triangle QRS after it is rotated 90° counterclockwise about the origin. |
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A. |
Q´(-5, -3), R´(-3, -7), S´(-1, -2) |
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B. |
Q´(-3, 5), R´(-7, 3), S´(-2, 1) |
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C. |
Q´(5, -3), R´(3, -7), S´(1, -2) |
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D. |
Q´(-3, -5), R´(-7, -3), S´(-2, -1) |
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Hint |
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10. |
Triangle DEF has vertices D(-6, -1), E(-4, -8), and F(-2, -5). Find the coordinates of the image of triangle DEF after it is rotated 180° about the origin. |
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A. |
D´(-1, -6), E´(-8, -4), F´(-5, -2) |
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B. |
D´(1, 6), E´(8, 4), F´(5, 2) |
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C. |
D´(6, 1), E´(4, 8), F´(2, 5) |
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D. |
D´(1, -6), E´(8, -4), F´(5, -2) |
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Hint |
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11. |
Which of the following is true concerning matrix multiplication of three matrices A, B, and C? |
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A. |
AB = BA for no cases |
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(A + B)C = CA + CB |
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C. |
C(A + B) = CA + CB |
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D. |
AB = BA for all cases |
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Hint |
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12. |
What translation matrix should be used to translate a figure with five vertices up 3 units and right 2 units? |
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A. |
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B. |
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C. |
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13. |
Use the triangle in the diagram with a translation of 7 down, 2 units to the right, followed by a reflection over the y-axis to find the coordinates of X''. |
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A. |
(1, 1) |
B. |
(-1, -1) |
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C. |
(-1, 1) |
D. |
(1, -1) |
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Hint |
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14. |
Use the triangle in the diagram with a translation of 4 down, 2 units to the left, followed by a reflection over the x-axis to find the coordinates of Y''. |
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A. |
(-3, 3) |
B. |
(-2, 5) |
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C. |
(3, 3) |
D. |
(1, 3) |
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Hint |
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15. |
A farmer raises two crops that are shipped to 3 distributors. The table shows the number of crates shipped to each distributor. The profit on crop 1 is $2.50 per crate. The profit on crop 2 is $2.75 per crate. Find the amount of profit from Distributor B. |
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A. |
$1542.50 |
B. |
$770 |
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C. |
$1540 |
D. |
$2095 |
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Hint |
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16. |
A farmer raises two crops that are shipped to 3 distributors. The table shows the number of crates shipped to each distributor. The profit on crop 1 is $2.50 per crate. The profit on crop 2 is $2.75 per crate. Find the amount of profit from Distributor C. |
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A. |
$1540 |
B. |
$1529 |
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C. |
$770 |
D. |
$2112.50 |
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Hint |
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