CH4Q

Select all transformations that do not result in mapping (a, −a) to ( a, a) when a > 0.

• reflection in the y-axis

• reflection in the x-axis

• translation 2a units up

• translation a units up, followed by a reflection in the line y = a

Use the dilation to fin the value of y.

• 1.4

• 5

• 25

• 49

Which graph shows the image of ABC after the glide reflection?

Translation: (x, y) → (x + 2, y + 3)

Reflection: in the line y = x

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Which of the following is a congruence transformation that maps the preimage to the image?

• reflection in the x-axis, followed by a rotation of 180° about the origin

• reflection in the line y = x, followed by a reflection in the x-axis

• rotation of 270° about the origin, followed by a reflection in the y-axis

• reflection in the line y = −x, followed by a rotation of 180° about the origin

What are the vertices of the image of XYZ after a reflection in the line y = −x, followed by a rotation of 270° CCW about the origin?

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If the distance between m and n is 3.8 inches, what is the length of RR"?

Write a rule for the translation of ABC to A′B′C′

What are the values of x that make m || n ?

• x = −1 and x = 4

• x = −3 and x = 5

• x = 24 and x = 54

• x = 82 and x = 90

What are the vertices of the image of DEF after a dilation with scale factor 2, followed by a translation 2 units left and 4 units up?

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What is the distance from A(−6,1) to the line 3x − 4y = 16?

• .5

• 7.6

• 27.1

• 57.8