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Graph the image of the figure after a dilation with a scale factor of 1/2 centered at (−1, 3) . Use the polygon tool to graph the triangle by connecting all its vertices.

Graph the image of the figure after a dilation with a scale factor of 1/2 centered-example-1

2 Answers

4 votes

Answer:

0,5 -3,5 -3,3 is the answer

Explanation:

User Tulir
by
7.7k points
4 votes

Answer:

see attached diagram

Explanation:

Given triangle has vertices at points B(-5,3), C(-5,7) and D(1,7). The center of dilation is point A(-1,3) and the factor of dilation is
(1)/(2). The dilation by a factor
(1)/(2) decreases lengths AB, AC and AD twice, then image triangle vertices are midpoints of segments AB, AC and AD.

1. The midpoint E of the segment AB has coordinates


E\left((-5+(-1))/(2),(3+3)/(2)\right)\Rightarrow E(-3,3).

2. The midpoint F of the segment AC has coordinates


F\left((-5+(-1))/(2),(7+3)/(2)\right)\Rightarrow F(-3,5).

3. The midpoint G of the segment AD has coordinates


G\left((1+(-1))/(2),(3+7)/(2)\right)\Rightarrow G(0,5).

Graph the image of the figure after a dilation with a scale factor of 1/2 centered-example-1
User Gre Hahn
by
6.2k points
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