Reflections, Translations, and Rotations

What is the transformation for the following reflection? 

• Reflection across       y = −1
• Reflection across        y = 1
• Reflection across            x = −1
• Reflection across          x = 1

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is this transformation?
(x, y) ----> (-x, y) 

• Reflect over the x axis
• Reflect over the y-axis
• Slide down 1
• slide left 1

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the Rule for this Reflection?

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflect the point (2, -4) over the y-axis.

• (-4, 2)
• (-2, 4)
• (-2, -4)
• (2, 4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

B(-2, -4)
Reflect over the line y = x

• (2, -4)
• (-4, 2)
• (-4, -2)
• (4, 2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Point C (-5, 4) is reflected over the x-axis. What are the coordinates of C'? 

• (5, 4)
• (-5, -4)
• (5, -4)
• (-5, 4) 

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What point do you get if you reflect the point ( -6,1) over the line y = -x?

• (-1,-6)

• (6,-1)

• (1,6)

• (-1,6)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

The point ( -2,5) is reflected over the line x = 1.  Find its image.

• (  4,  5)
• ( -2  , -5)
• ( 2  ,  5)
• (2   , -5)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Quadrilateral CJKM is reflected across the x-axis. What are the coordinates of K' if the pre-image is C(-3, 1), J(0, 1), K(1, -4), M(-4, -2).

• (4, 1)

• (-1, -4)
• (1, -4)
• (1, 4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Triangle ABC is reflected over the y-axis. If the coordinates are A(4, 4), B(0, 4), C(3, 2); What are the coordinates of C' ?

• (-3, 2)
• (3,2)
• (-2,3)
• (3,0)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5