The coordinates of the vertices of triangleCDE 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?

(1 point)
Responses

(3, –6)
(3, –6)

(3, –3)
(3, –3)

(3, 0)
(3, 0)

(3, 9)
(3, 9)

1 answer

The line of reflection is y = 3, which is 3 units away from the x-axis.

The image of D after reflecting over the line y = 3 will be the same x-coordinate, but the y-coordinate will be reflected across the line y = 3.

D(3, 6) is reflected to D'(3, 0).

Therefore, the correct coordinates for the image of D are (3, 0).

(3, 0)