Question

timed problem
score: 0/5
reflection over the line y = x of the point (2, -7)
answer
(-7, 2)
(7, -2)
(2, 7)
(-2, -7)

Explanation:

Step1: Recall reflection rule

When reflecting a point $(x,y)$ over the line $y = x$, the coordinates are swapped. So the new point is $(y,x)$.

Step2: Apply rule to given point

For the point $(2,-7)$, swapping the $x$ - coordinate and $y$ - coordinate gives $(-7,2)$.

Answer:

$(-7,2)$