Unit 10 CW 2 - Reflections

A reflection over the  $y-axis$  will..

• Change the sign of the y-coordinate while the sign for the x-coordinate stays the same.

• Change the sign of the x-coordinate while the sign for the y-coordinate stays the same.

• Change the sign for both the x and the y-coordinates.

• Nothing will change.

 $\Delta XKT$  has vertices  $X\left(1,0\right),\ K\left(4,1\right),\ T\left(5,-3\right)$ .  If reflected over the y-axis, where would  $T'$  be?

•  $\left(-5,-3\right)$  

•  $\left(5,-3\right)$  

•  $\left(5,3\right)$  

•  $\left(-5,3\right)$  

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Point  $A\left(-2,-10\right)$   is reflected over the line   $y=x$ . What are the coordinates of  $A'$  ?

•  $\left(2,10\right)$  

•  $\left(-10,-2\right)$  

•  $\left(10,2\right)$  

•  $\left(-2,10\right)$  

 $\Delta YCN$  has vertices  $Y\left(4,4\right),\ C\left(3,1\right),\ N\left(5,-1\right).$  If reflected over the line  $y=-x,$  then what are the coordinates of  $C'$  ?

•  $\left(-3,-1\right)$  

•  $\left(1,3\right)$  

•  $\left(-1,-3\right)$  

•  $\left(-1,3\right)$  

What is the image of point X after a reflection over the line y=3

• X'(0 , 1)

• X'(1 , 0)

• X'(0 , -5)

• X'(-5 , 0)

Given  $\Delta HCK,$  what are the coordinates of  $\Delta H'C'K'$  after a reflection over the line  $x=1$  ?

•  $H'\left(-1,3\right),\ K'\left(-3,0\right),\ C'\left(0,-2\right)$  
  

•  $H'\left(-3,3\right),\ K'\left(-5,0\right),\ C'\left(-2,-2\right)$  

•  $H'\left(-1,\ 3\right),\ K'\left(0,\ -3\right),\ C'\left(-2,\ 0\right)$  

•  $H'\left(1,3\right),\ K'\left(-1,0\right),\ C'\left(1,-2\right)$  

Which answer shows a reflection over the x-axis?

• 
• 
• 
• 

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

CCSS.8.G.A.4

Describe which combination of transformations will transform point A into point A''.

• Reflect over the x-axis and then reflect over the y-axis

Identify the line of reflection in the picture.