Question

if p = (-4,7), find: r_y - axis (p) (?, )

Explanation:

Step1: Recall y - axis reflection rule

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

Step2: Apply rule to point P

Given $P=(-4,7)$, then $x = - 4$ and $y = 7$. After reflection, $x$ becomes $-(-4)=4$ and $y$ remains 7.

Answer:

$(4,7)$