Question

When reflecting a figure across the y-axis, which coordinate(s) remain the same?
inverse coordinates
y-coordinates
polar coordinates
x-coordinate

Answer 1

When reflecting a figure across the y-axis, the y-coordinates remain the same while the x-coordinates change their signs. Therefore, the correct answer is:

**y-coordinates.**

In more detail, a point \((x, y)\) will become \((-x, y)\) after reflection across the y-axis.