Enter the coordinate points of to 3 different points into the calculator to reflect them over the x-axis.

- Polar Coordinates Calculator
- Rotation Calculator (new coordinates by rotation)
- Perpendicular Bisector Calculator

## Reflect Over X-Axis Formula

The following formula is used to reflect a coordinate point about the x-axis.

(X2,Y2) = (X1,Y1) * (1,-1)

- Where X2 and Y2 are the new reflected coordinates
- X1 and Y1 are the original coordinate points

## Reflect Over X-Axis Definition

Reflection over the x-axis is the process of producing a coordinate point that is mirrored across the x-axis of the coordinate plane. That is it has the same X coordinate and opposite y4 coordinate.

## Reflect over X-Axis Example

How to reflect over the x-axis?

**First, determine the original coordinate points.**For this example we will say the coordinate points are (4,5).

**Next, calculate the new coordinate points.**Using the formula above we calculate the new reflected points as (4,5)*(1,-1) = (4,-5).

## FAQ

**What are the coordinates of a point reflected across the x-axis?**

Any point reflected across the x-axis will have the same x value and the opposite y value as the original point.

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