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Rectangle A'B'C'D' is the image of rectangle ABCD after it has been translated according to the rule T–4, 3(x, y).

Which points are vertices of the pre-image, rectangle ABCD? Check all that apply.

(–1, –2)(7, 1)(–1, 7)(–1, 1)(7, –2)

Rectangle A'B'C'D' is the image of rectangle ABCD after it has been translated according-example-1

2 Answers

6 votes

Answer: A B D E

Step-by-step explanation: i just did it and i got it wrong so i got the answer

User Noir
by
8.6k points
3 votes

we know that

The rule of the translation of the pre-image to the image is equal to


(x,y)-------> (x-4,y+3)

that means

The translation is
4 units to the left and
3 units up

so

the inverse rule of translation of the image to the pre-image is equal to


(x',y')-------> (x'+4,y'-3)

we have the vertices of the image


A'(-5,4)\\B'(3,4)\\C'(3,1)\\D'(-5,1)

Applying the inverse rule of the translation find the coordinates of the vertices of the pre-image

Step 1

Find the coordinates of the vertex A of the pre-image


(-5,4)-------> (-5+4,4-3)


(-5,4)-------> (-1,1)

the coordinates of vertex A is
(-1,1)

Step 2

Find the coordinates of the vertex B of the pre-image


(3,4)-------> (3+4,4-3)


(3,4)-------> (7,1)

the coordinates of vertex B is
(7,1)

Step 3

Find the coordinates of the vertex C of the pre-image


(3,1)-------> (3+4,1-3)


(3,1)-------> (7,-2)

the coordinates of vertex C is
(7,-2)

Step 4

Find the coordinates of the vertex D of the pre-image


(-5,1)-------> (-5+4,1-3)


(-5,1)-------> (-1,-2)

the coordinates of vertex D is
(-1,-2)

Step 5

Verify which points are vertices of the pre-image


(-1,-2) -------> this point is the vertex D of the pre-image


(7,1) -------> this point is the vertex B of the pre-image


(-1,7) -------> this point is not a vertex of the pre-image


(7,-2) -------> this point is the vertex C of the pre-image

therefore

the answer is


(-1,-2)


(7,1)


(7,-2)

User Jasonwryan
by
7.9k points