write the coordinates of the vertices after a reflection over the y - axis.

Explanation:

Step1: Recall reflection rule

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

Step2: Identify coordinates of K

From the graph, point $K$ has coordinates $(9,1)$. Applying the reflection rule, $K'$ has coordinates $(-9,1)$.

Step3: Identify coordinates of L

Point $L$ has coordinates $(8,6)$. After reflection over the $y -$axis, $L'$ has coordinates $(-8,6)$.

Step4: Identify coordinates of M

Point $M$ has coordinates $(6, - 2)$. After reflection over the $y -$axis, $M'$ has coordinates $(-6,-2)$.

Answer:

$K'(-9,1)$ $L'(-8,6)$ $M'(-6,-2)$