syldajahsimpson syldajahsimpson

25-11-2018
Mathematics

contestada

The line segment shown is rotated 90° about the origin (counterclockwise). What are the new coordinates of point A? A) (2, 1) B) (-2, 1) C) (-2, -1) D) (1, 2)

Respuesta :

jimrgrant1 jimrgrant1

25-11-2018

Under a counterclockwise rotation about the origin of 90°

a point (x , y ) → (- y, x ), hence

A(2, 1 ) → A'(- 1, 2 )

Answer Link

Killer1011 Killer1011

22-03-2019

Answer:

A. (2,1)

Step-by-step explanation:

Answer Link

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