Question

Determine the coordinates of each triangles image after the given transformation.

1. You rotate Triangle DEF with coordinates, D (-2, 2) E (1, 5) F (4, -1) 90* counterclockwise about the origin.

2. You reflect Triangle GHJ with coordinates K (2, -9), L (3, 8), and J (1, 6) across the x-axis.

3. You rotate Triangle NPQ with coordinates N (12, -3), P (1, 2), and Q (9, 0) 180* about the origin.

Answer 1

1. The new coordinates after the rotation would be D' (-2, -2) E' (-5, 1) and F' (1, 4).

2. The new coordinates after reflection across the x-axis would be K' (2, 9), L' (3,-8) and J' (1,-6).

3. The new coordinates after the rotation by 180 degrees around the origin would be N' (-12, 3), P' (-1, -2) and Q' (-9, 0).