Question

if the triangle abc is reflected across the y - axis to create a new image, which rule describes this transformation? (x, y) --> (-x, y) (x, y) --> (-y, x) (x, y) --> (y, -x) (x, y) --> (x, -y)

Explanation:

Step1: Recall reflection rule

When reflecting a point $(x,y)$ across the y - axis, the x - coordinate changes sign and the y - coordinate remains the same.

Answer:

$(x,y)\to(-x,y)$