Rotate Using Coordinates

If you were to rotate ABCD 90° counterclockwise about the origin, what would the coordinate of A' be?

• (-5, 5)

• (-3, 5)

• (-5, 3)

• (-3, 3)

Answer explanation

Find the image of triangle ABC after rotating 90 degrees counterclockwise about the origin. What are the coordinates of C' ?

• (3, -4)

• (-4, -3)

• (4, 3)

• (-3, 4)

Answer explanation

What would be the location of A' after a 90 degree counterclockwise rotation of point (A) ?

Hint: Look for point A and apply the rule (x, y) → (–y, x)

• (-1, 2)

• (2, -1)

• (-2, -1)

• (-1, -2)

Rotate the point (-5,8) around the origin 270 degrees counterclockwise. State the image of the point.

• (-8,5)

• (8,-5)

• (8,5)

• (5,-8)

Find the coordinates of each point after the given transformation.

• V' (1, -3)

• V' (-5, 3)

• V' (-1, 3)

• V' (-3, -1)

What are the coordinates for A' after a 90^⁰ rotation clockwise?

• (1, 3)

• (3, 1)

• (3, -1)

• (1, -3)

Label the Rotation brain dump.

a

b

d

c

270CC, 90 C (y,-x)

clockwise (x,y)

90CC, 270C (-y,x)

180 (-x,-y)

Find the coordinates of each point after the given transformation.

• Q' (-2, -3)

• Q' (4, 0)

• Q' (-3, 2)

• Q' (2, 3)

What do you need to trace onto your patty paper to perform a ROTATION?

• The shape with vertices (corners with letters)

• Origin or center point

• "Spinner" or axis from the center to the edge

• Line

Find the coordinates of each point after the given transformation.

• U' (-3, 2)

• U' (-2, -3)

• U' (-2, 3)

• U' (3, -2)