Question

The coordinates of point A on a grld are (-3,-2), Point A is reflected across the y-axls to obtain point B. The coordinates of point B are

-2).

Answer 1

The coordinates of the image of B(-3, -2) is B'(3, -2).

Explanation:

• We know that when a point (x, y) is reflected across the y-axis, the y-coordinate remains the same, and then the x-coordinate becomes negative.

i.e.

• Thus, the image of P(x, y) is P' (-x, y).

Given the point

• B(-3, -2)

Hence, the image of B(-3, -2):

• (-x, y) → (-(-3), -2) = (3, -2)

Therefore, the coordinates of the image of B(-3, -2) is B'(3, -2).