Big Ideas Geometry

Point (-1,2) is reflected over the y axis. Where is the new point located?

• (1,2)

• (-1,-2)

• (-1,2)

• (1,-2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which rule would result in a translation of 2 units left and 3 units up?

• (x, y) → (2x, 3y)
• (x, y) → (x - 2, y + 3)
• (x, y) → (-x, -y)
• (x, y) → (x + 2, y - 3)

Tags

CCSS.HSG.CO.A.2

The rule for reflection over the y-axis is  
(x, y) --> _

• (-x, y)
• (x, -y)
• (y, x)
• (-y, x)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What would the new point be if you rotated the point (3,-5) 90° about the origin?

• a. (-3,-5)

• b. (-5,-3)

• c. (5,3)

• d. (3,-5)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What does the line x = 4 look like?

• horizontal (going left and right)
• Vertical (going up and down)

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

• 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

Dilate Point B by a scale factor of 3:

• (12,0)
• (12,12)
• (4,3)
• (0,12)

Tags

CCSS.8.G.A.3

Triangle A is rotated 270° counterclockwise with the origin as the center of rotation to create a new figure. Which triangle shows the new location?

• A
• B
• C
• D

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflect (3,5) over the x-axis.

• (2,2)

• (3,-5)

• (-3,-5)

• (-3,5)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Point (-5,2) is reflected over the y axis.  Where is the new point located?

• (5,2)
• (-5,-2)
• (-5,2)
• (5,-2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5