Question

3.3 homework - reflections and translations - graded
state the image of the point (3, 7) after a reflection across the y - axis:

Explanation:

Step1: Recall reflection rule

The rule for reflecting a point $(x,y)$ across the y - axis is $(-x,y)$.

Step2: Apply the rule

Given the point $(3,7)$, when we apply the rule, we change the sign of the x - coordinate. So, $x = 3$ becomes $-3$ and $y=7$ remains the same.

Answer:

$(-3,7)$