feb82007
contestada

Triangle JKL is rotated to 270° counterclockwise about the origin to form triangle JKL what is the Y coordinate of point J?

Triangle JKL is rotated to 270 counterclockwise about the origin to form triangle JKL what is the Y coordinate of point J class=

Respuesta :

sqdancefan

Answer:

  J' = (-2, 4)

Step-by-step explanation:

The transformation for 270° counterclockwise rotation about the origin is ...

  (x, y) ⇒ (y, -x)

The point J is (-4, -2), so the point J' is ...

  J' = (-2, -(-4))

  J' = (-2, 4)

Answer: the Y coordinate is 4