Question

Triangle PQR is reflected over the y-axis to create triangle P’Q’R’. What are the coordinates of point R’?

(11,1)

(-2,7)

(-3,1)

(1,-3)

Answer 1

To find the coordinates of point R' after reflecting point R over the y-axis, we need to understand how reflection over the y-axis affects coordinates:

- If a point has coordinates (x, y), after reflection over the y-axis, its new coordinates will be (-x, y).

Now, we need to determine the original coordinates of point R from the given options:

1. (11,1) - After reflection, the coordinates would be (-11, 1).
2. (-2,7) - After reflection, the coordinates would be (2, 7).
3. (-3,1) - After reflection, the coordinates would be (3, 1).
4. (1,-3) - After reflection, the coordinates would be (-1, -3).

If we assume we started with R at any of the original points provided, it's essential to know the original x-coordinate. However, since we are only asked for the coordinates of R' after reflection, let's reflect each provided option to find the coordinates of R':

- Option 1 reflects to (-11, 1)
- Option 2 reflects to (2, 7)
- Option 3 reflects to (3, 1)
- Option 4 reflects to (-1, -3)

Since you are asking for point R', it seems that the original coordinates of R might be one of the points listed. The correct answer for the reflected point R', given the reflection, depends on the original coordinate.

Please identify point R from the four given points if you want the reflection of a specific point R, or specify if any additional context is provided. Based on reflection alone, we can't directly determine the reflected point without knowing the original point R's x-coordinate.