Question

What would the new coordinates be for A if the triangle was reflected over the y-axis?

triangle




(1,-1)
(-1,-1)
(-1,1)
(1,1)

Answer 1

Point A:

(1, 1) -----> (-1, 1)

Explanation:

When reflecting over the y-axis, take the opposite of the x-coordinate. That means if the coordinate is positive then it becomes negative, and if it is negative then it becomes positive.

(x, y) -------> (-x, y)

Point A:

(1, 1) -----> (-1, 1)