Question

What are the coordinates of the point (10,-4) if it is reflected across the y-axis

Answer 1

the answer would be -10,4 because when something is reflected over the y axis the x-value becomes the opposite sign. when something is reflected over the x-axis then the y-value becomes the opposite

Answer 2

(10, 4)

Explanation:

The easiest way to understand it is to draw it. Please notice that the distance from Y axis is still 4, the point is just at the other side of the axis.