Question

write the coordinates obtained after the giv

1. u(7, 9), v(3, 9), w(5, 3)

reflection across the y - axis
u: ____, v: ____
w: ______

Explanation:

Step1: Recall reflection rule

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

Step2: Find $U'$

For point $U(7,9)$, applying the rule $(-x,y)$, we get $U'(-7,9)$.

Step3: Find $V'$

For point $V(3,9)$, applying the rule $(-x,y)$, we get $V'(-3,9)$.

Step4: Find $W'$

For point $W(5,3)$, applying the rule $(-x,y)$, we get $W'(-5,3)$.

Answer:

$U':(-7,9)$, $V':(-3,9)$, $W':(-5,3)$