Posted by **roxie** on Thursday, March 15, 2012 at 3:08pm.

The coordinates of the vertices of CDE are C(1, 4), D(3, 6), and E(7, 4). If the triangle is reflected over the line y = 3, what are the coordinates of the image of D?

- geometry -
**Reiny**, Thursday, March 15, 2012 at 3:50pm
all your x's will stay the same

for D(3.6), D is 3 units above y = 3

so the reflection in y = 3 would put it 3 units below,

resulting in D1(3,0)

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