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11. Consider rectangle ABCD.

Suppose ABCD is dilated with
the center at vertex C and a
scale factor of three.
Determine the sum of the y-
coordinates of A'B'CD'.
Coordinates are
D(-6,7)
A(-6,5)
B(3,5)
C(3,7)

1 Answer

3 votes

Answer:

A'(-24,1), B'(3,1), C'(3,7), D'(-24,7)

Explanation:

Rctangle ABCD has vertices at points A(-6,5), B(3,5), C(3,7) and D(-6,7).

The dilation with the center at vertex C and a scale factor of three has the rule


(x,y)\rightarrow (3(x-x_C)+x_C,3(y-y_C)+y_C)

Then


  • C(3,7)\rightarrow C'(3,7);

  • A(-6,5)\rightarrow A'(-24,1);

  • B(3,5)\rightarrow B'(3,1);

  • D(-6,7)\rightarrow D'(-24,7).

11. Consider rectangle ABCD. Suppose ABCD is dilated with the center at vertex C and-example-1
User Aladin Spaz
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