Answer:
The coordinates of the reflected points are:
(-1,2) and (3,-3)
Explanation:
When we reflect the figure across the y-axis then the rule of the transformation is given by:
(x,y) → (-x,y)
i.e. each point on the figure is transformed as the x-coordinate of the point takes the opposite sign and the y-coordinate remains the same.
Hence,
(1,2) → (-1,2)
and (-3,-3) → (-(-3),-3)
i.e.
(-3,-3) → (3,-3)