i think the question was post before and sir steve answered i rember fully well
he said such
reflection move from
(x,y).....(-x,y)
he said such
reflection move from
(x,y).....(-x,y)
The y-axis is a vertical line that serves as a mirror for the reflection. When a point is reflected over the y-axis, its x-coordinate changes sign (+ to - or - to +), while its y-coordinate remains the same.
Let's say Triangle ABC has vertices A(x1, y1), B(x2, y2), and C(x3, y3).
After reflecting over the y-axis:
- The x-coordinate of vertex A will change sign, becoming -x1, while the y-coordinate remains the same, y1.
- The x-coordinate of vertex B will change sign, becoming -x2, while the y-coordinate remains the same, y2.
- The x-coordinate of vertex C will change sign, becoming -x3, while the y-coordinate remains the same, y3.
So, the coordinates of the reflected triangle will be:
Vertex A: (-x1, y1)
Vertex B: (-x2, y2)
Vertex C: (-x3, y3)
In summary, when a triangle is reflected over the y-axis, the x-coordinates of its vertices change sign while the y-coordinates remain the same.