reflection in the x-axis
For a given coordinate pair. A reflection in the y-axis is making the 'x' term negative. e.g. ( a,b,) ' (-a, b). Similarly for a reflection in the x-axis is making the 'y' term negative. e/.g. ( c,d) ; ( c,-d).
If the coordinates of a point, before reflection, were (p, q) then after reflection, they will be (-p, q).
Reflection about the y-axis.
c
Example: if you have a point with the coordinates (2,4), a reflection over the y-axis will result in the point with coordinates (-2,4).
(x,-y)
For a reflection over the x axis, leave the x coordinate unchanged and change the sign of the y coordinate.For a reflection over the y axis, leave the y coordinate unchanged and change the sign of the x coordinate.
reflection in the x-axis
They are (-a, b).
Reflection in the y-axis.
The reflection of a point across the y-axis involves changing the sign of the x-coordinate while keeping the y-coordinate the same. In this case, the point (-1, -5) will reflect to (1, -5) across the y-axis. This is because the x-coordinate changes from -1 to 1, while the y-coordinate remains -5.
Reflections are congruence transformations where the figure is reflected over the x-axis, y-axis, or over a line.
y = -f(x) is a reflection of y = f(x) in the x axis.
For a given coordinate pair. A reflection in the y-axis is making the 'x' term negative. e.g. ( a,b,) ' (-a, b). Similarly for a reflection in the x-axis is making the 'y' term negative. e/.g. ( c,d) ; ( c,-d).
a horizontal reflection is a reflection of the y axis. i.e (-fx)
A' = (-1, -2)