I need help with vertices!
The vertices of triangle FGH are F(1,1), G(3,-5),H(6,0). Find the coordinates of the vertices after a refelection over the y-axis.
I'm not sure how to do this. Is there a certain formula I need to know?
The reflection across the y-axis negates the x coordinates. The y coordinates remain the same.
To find the coordinates of the vertices after the reflection over the y-axis, you need to negate the x-coordinate of each vertex while keeping the y-coordinate the same.
Let's go through each vertex and apply the reflection:
1. F(1,1): To reflect over the y-axis, negate the x-coordinate. Therefore, the new coordinates are F'(-1, 1).
2. G(3,-5): Again, to reflect over the y-axis, negate the x-coordinate. Therefore, the new coordinates are G'(-3, -5).
3. H(6,0): Lastly, to reflect over the y-axis, negate the x-coordinate. The new coordinates are H'(-6, 0).
So, the coordinates of the vertices after the reflection over the y-axis are:
F'(-1, 1), G'(-3, -5), H'(-6, 0).
Remember, reflecting a point over the y-axis only negates the x-coordinate. No changes are made to the y-coordinate.