Question

Point A is the original point before rotating. Which point represents A prime after A (4, 1) is rotated 90 degrees counterclockwise

Answer 1

To rotate a point 90 degrees counterclockwise, we can use the following formulas:

x' = -y
y' = x

Using these formulas, we find A prime after rotating A (4, 1):

x' = -1
y' = 4

Therefore, A prime is (-1, 4).