Question

what is the pre - image of vertex a if the image shown on the graph was created by a reflection across the y - axis? (-8,-6) (-6,8) (8,6) (6,-8)

Explanation:

Step1: Recall reflection rule

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

Step2: Identify coordinates of A'

From the graph, the coordinates of $A'$ are $(6,8)$.

Step3: Apply reflection rule

Using the rule $(-x,y)$, for the point $(6,8)$ the pre - image is $(-6,8)$.

Answer:

$(-6,8)$