Translations

Question 1

What are the coordinates of P’ and L’?

Revolt · Accepted Answer

C: P’(9, -6), L’(3, 1)

Question 2

Which are true statements about a translation? Select all that apply.

Revolt · Accepted Answer

A: The image is congruent to the pre-image.; C: The image could be moved left or right.; D: The image could be moved up or down.

Question 3

What are the coordinates of C’?

Revolt · Accepted Answer

A: C’(4, –2)

Question 4

What are the coordinates of B' after the translation?

Revolt · Accepted Answer

B: (–3, 6)

Question 5

What are the coordinates of P'?

Revolt · Accepted Answer

C: P'(1, –3)

Question 6

John says the transformation rule (x, y) (x + 4, y + 7) can be used to describe the slide of the pre-image (4, 5) to the image (0, –2). What was his error?

Revolt · Accepted Answer

The preimage is the point you start with. To check the transformation rule, substitute the values of the coordinates (4, 5) into the rule. You get (4, 5) → (44, 57). Simplify to get (4, 5) → (8, 12). This is the image. Instead the rule was applied to the image. This is the source of the error.

Question 7

What did you include in your response? Check all that apply.

Revolt · Accepted Answer

A: The transformation rule should be applied to the pre-image.; B: The application of the rule results in the point (8, 12).; C: The transformation rule was applied to the wrong point.

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