Question

△ijk is reflected across the y - axis to produce △ijk. write the rule for the reflection. (x, y)→(□,□)

Explanation:

Step1: Recall reflection rule

For a reflection across the y - axis, the x - coordinate changes sign and the y - coordinate remains the same.

Step2: Write the general rule

If we have a point \((x,y)\) reflected across the y - axis, the new point is \((-x,y)\).

Answer:

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