Question

If the following figure is 180° about the origin, what is the new location?


Triangle with vertices J (2, 8), K (zero, 3), and L (negative 3, 6).

A. J’ (-2, -8), K’ (0, -3), (3, -6)
B. J’ (-2, 8), K’ (0, 3), L’ (3, 6)
C. J’ (2, -8), K’ (0, -3), L’ (-3, -6)
D. J’ (2, 8), K’ (0, 3), L’ (-3, 6)

Answer 1

To rotate something 180 degrees about the origin, just take the negative of each coordinate. For example...a 4 would become -4....a -6 would become 6

Answer 2

When rotating a two-dimensional figure 180 degrees about the origin, you flip the sign on all the X and Y coordinates.

J is (2, 8), so J' becomes (-2, -8)
K is (0, 3), so K' becomes (0, -3)
L is (-3, 6), so L' becomes (3, -6)

Answer 3

Yes, that's what I just said. She could have finished it from there.