Triangle JKL has been reflected over the y-axis. Which of the following best describes the relationship between the y-axis and the line connecting K to K′?

They share the same midpoints.
They are diameters of concentric circles.
They are parallel and congruent.
They are perpendicular to each other.

If the original coordinates of K were

The new coordinates will be

In fact, a reflection over the y-axis changes the sign of the x coordinate, and leaves the y coordinate unchanged.

So, the line connecting K and K' has slope

and thus it is horizontal.

Any horizontal line is perpendiculat to the y axis.

-81 -56 -27 0 81

step-by-step explanation:

the answer is 1030 it's very simple math.