The coordinates of point a on a grid are (−4, 3). point a is reflected across the y-axis to obtain point b. the coordinates of point b are 3).

(x, y) > (-x, y)
The y would stay the same same thing goes for x if you were reflecting your point over the x axis, your x would stay the same.

(-4, 3) > (4, 3)
That would be your answer. ^
HOPE THIS HELPS! ^_^

The vertex of the quadratic function is (1.5, -.75)