Question

A point at (-85, 40) is reflected over the x-axis. What are the coordinates of the reflected point?
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Answer 1

The reflection across the x-axis of (-85, 40) is (-85, -40).

How to reflect a point over the x-axis?

A reflection over a given axis, just translates the point to the other side of the axis, in such a way that the distance between the point and the axis does not change.

Then, for a point (x, y), a reflection across the x-axis gives the point:

(x, -y).

So only the sign of the y-component changes.

Now we can apply that to our point, the reflection across the x-axis of (-85, 40) is just (-85, -40).

If you want to learn more about reflections, you can read:

https://brainly.com/question/4289712