Question

write the coordinates of the vertices after a reflection over the x-axis.
r(□, )

Explanation:

Step1: Identify original vertices

Original coordinates:
$S(-9, 0)$, $T(1, 0)$, $U(1, -10)$, $R(-9, -10)$

Step2: Apply x-axis reflection rule

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

• $S': (-9, -0)=(-9, 0)$
• $T': (1, -0)=(1, 0)$
• $U': (1, -(-10))=(1, 10)$
• $R': (-9, -(-10))=(-9, 10)$

Answer:

$R'(-9, 10)$, $S'(-9, 0)$, $T'(1, 0)$, $U'(1, 10)$