Coordinates Rule

The coordinate (0,0) is also known as the ___.

• y-axis

• x-axis

• origin

Tags

CCSS.5.G.A.1

If you were to rotate ABCD 180°  about the origin, what would the coordinate of A' be?

• (-5, 5)

• (-3, -5)

• (-5, 3)

• (-3, 3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Triangle ABC is rotated 90 degrees counterclockwise about the origin to create triangle A'B'C'. Which rule describes this transformation?

• (x, y) --> (-y, x)

• (x, y) --> (y, -x)

• (x, y) --> (-x, y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Rotation Rules (clockwise):

90^o rotation: (x, y)→(y, -x)

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

• (1, 3)

• (3, 1)

• (3, -1)

• (1, -3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Rotation Rules (clockwise):

180^o rotation: (x, y)→(-x, -y)

What are the coordinates of C' after a rotation of 180° clockwise?

• (-3, -1)

• (3,1)

• (1,3)

• (-1, -3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Dilate a figure with coordinates of A(3,3), B(6,6), and C(9,3) by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?

• A'(9,9) B'(18,18) C'(27,9)

• A'(6,6) B'(9,9) C'(12,6)

• A'(0,0) B'(3,3) C'(6,0)

• A'(1,1) B'(2,2) C'(3,1)

Tags

CCSS.8.G.A.3

If Triangle ABC is dilated using a scale factor of 1/2, what will be the coordinates of C'?

• (-1, -2.5)

• (12, 6)

• (3, -1.5)

• (0, 1.5)

Tags

CCSS.8.G.A.3

Which of these rules written using coordinate notation could be a rule for a reduction?

• (x, y)→(2x, 2y)

• (x, y)→(5/2 x, 5/2y)

• (x, y)→(0.5x, 0.5y)

• (x, y)→(5x, 5y)

Tags

CCSS.8.G.A.3

Triangle ABC will be dilated using the rule (x, y)→(2x, 2y).  What will be the coordinates of C'?

• (12, -3)

• (12, -6)

• (3, -1.5)

• (8, -5)

Tags

CCSS.HSG.CO.A.2