Given a point (−7, 4) on a geometric figure, what is the new point after rotating the figure 90 degrees counterclockwise?

1 answer

To rotate a point \( (x, y) \) by 90 degrees counterclockwise around the origin, you can use the following transformation:

\[ (x, y) \rightarrow (-y, x) \]

For the given point \( (-7, 4) \):

\[ x = -7,\ y = 4 \]

Applying the transformation:

\[ (-7, 4) \rightarrow (-4, -7) \]

Therefore, the new point after rotating the figure 90 degrees counterclockwise is \( (-4, -7) \).