Answer:
(5, 4)
Step-by-step explanation:
The general rule for reflection of a point along y-axis is:
i.e. the point (x, y) after reflection along y-axis will be (-x, y)
The given point is (-5, 4). Using the above rule for this point, the new point after reflection will be (5, 4) i.e same y-coordinate but x-coordinate with inverted sign.