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What are the coordinates of vertex J of the pre-image? (0, -4) (0, -1) (0, 0) (0, 4)

User Futuregeek
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2 Answers

7 votes

Answer: (0,-4)

Explanation:

User Daks
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0 votes

Answer:

(0,-4)

Explanation:

The complete question is

Quadrilateral JKLM was dilated according to the rule

DO,1/2 (x,y)( 1/2x1/2y) to create the image quadrilateral J'K'L'M', which is shown on the graph.

What are the coordinates of vertex J of the pre-image?

The picture in the attached figure

we know that

The rule of the dilation is

(x,y) -----> (1/2x,1/2y)

The coordinates of vertex J' are (0,-2) ----> see the graph

therefore

The x-coordinate of J (pre-image) multiplied by 1/2 must be equal to the x-coordinate of J' (image)


(1)/(2)x=0 ----->
x=0

The y-coordinate of J (pre-image) multiplied by 1/2 must be equal to the y-coordinate of J' (image)


(1)/(2)y=-2 ----->
y=-4

therefore

The coordinates of J are (0,-4)

What are the coordinates of vertex J of the pre-image? (0, -4) (0, -1) (0, 0) (0, 4)-example-1
User Sravya
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