The coordinate P(−2,7) is reflected over the y-axis. State the coordinate of P′

Answer 1

When a point is reflected over the y-axis, the x-coordinate changes sign while the y-coordinate remains the same.

For the point P(−2, 7):

• The x-coordinate is -2, which will become +2 after the reflection.
• The y-coordinate remains 7.

Therefore, the coordinates of P′ after reflection over the y-axis are P′(2, 7).