Question

write the coordinates of the vertices after a reflection over the y-axis.
k( , )
l( , )
m( , )
n( , )

Explanation:

Step1: Identify original vertices

Original coordinates:
$K(-10, 0)$, $L(-1, 0)$, $M(-1, 9)$, $N(-10, 9)$

Step2: Apply y-axis reflection rule

For a point $(x,y)$, reflection over y-axis is $(-x,y)$.

• $K': (-(-10), 0) = (10, 0)$
• $L': (-(-1), 0) = (1, 0)$
• $M': (-(-1), 9) = (1, 9)$
• $N': (-(-10), 9) = (10, 9)$

Answer:

$N'(10, 9)$
$L'(1, 0)$
$M'(1, 9)$
$K'(10, 0)$