Question

5 what is the image of a(3, -1) after a reflection across the y - axis a (-3, -1) b (1, -5) c (-5, 7) d (-5, -1)

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 point $A(3,-1)$, when we apply the rule, $x = 3$ and $y=-1$. The new x - coordinate is $-3$ and the y - coordinate remains $-1$. So the image is $(-3,-1)$.

Answer:

A. (-3, -1)