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WorksheetsUnit 7 Retest
Total questions: 12
Worksheet time: 2hrs 12mins
The coordinate grid shows a pentagon. The pentagon is translated 1 unit to the left and 10 units down to create a new pentagon.
Which rule describes this transformation?
(x, y) → (x -1, y - 10)
(x, y) → (x +1, y -10)
(x, y) → (x -1, y + 10)
(x, y) → (x + 1, y + 10)
Quadrilateral FGHJ was dilated with the origin as the center of dilation to create quadrilateral F' G' H' J'. Which rule best represents the dilation that was applied to quadrilateral FGHJ to create quadrilateral F 'G' H' J'?
(x, y) → (5/7 x, 5/7y)
(x, y) → (x + 1, y + 2)
(x, y) → (1.4x, 1.4y)
(x, y) (x - 2, y + 1)
Two objects that are the same shape but not the same size are _______.
Congruent
Vertical
Similar
Complementary
Tell whether the two figures are similar. Explain your reasoning.
Yes, similar because they are the same shape and side lengths are proportional.
No, not similar because they are the same shape, but side lengths are not proportional.
Yes, same shape
No, different sizes
Determine how to translate triangle ABC to triangle A'B'C'.
(x-2, y+5)
(x+2, y-9)
(x-2, y+9)
(x-9, y+2)
∆QRS contains the points: Q(4, 2) R(5, 1) S(3,7). If the triangle is reflected across the y-axis, what will S' be?
S'(3, 7)
S'(-3, 7)
S'(-3, -7)
S'(3, 7)
Identify the transformation from C to D.
90o Counter Clockwise Rotation
180o Rotation
270o Counter clockwise Rotation
360o Rotation
Does the transformation shown preserve congruence and/or orientation?
Congruence yes, Orientation yes
Congruence No, Orientation No
Congruence No, Orientation yes
Congruence Yes, Orientation No
Which of the following are congruence transformations?
Rotations
Translations
Reflections
All Three
What is the sequence of transformations?
Reflect over the y then reflect over the x
Reflect over the x then reflect over the y
Translate 4 units then rotate 90˚
Rotate 90˚ then reflect over the x
Choose the correct scale factor:
2
3
1/3
1/2
Which of the following is the algebraic representation for a dilation?
(x, y) → (x, 3y)
(x, y) → (3x, 3y)
(x, y) → (x, y - 3)
(x, y) → (.5x, .4y)
