GeoA Quiz #2: Reflections across axis, y = x, y = -x

If I reflect ΔXYZ across the x-axis, what is the first step to drawing the reflection?

• Connect all of the dots

• Plot each new point the same number of units from the line of reflection

• Count the number of units each point is from the line of reflection

Which two triangles are reflections of each other across the x-axis?

• A and B

• B and D

• A and C

• C and D

Which two triangles are reflections of each other across the y-axis?

• A and B

• B and D

• A and C

• C and D

What axis is the triangle being reflected over?

• X-axis

• Y-axis

What axis is the image reflected over?

• X-axis

• Y-axis

Quadrilateral J is reflected over the x-axis. What is the image of the reflection?

• F

• G

• H

• Not shown

Which two quadrilaterals are reflections of each other across the y-axis?

• F and G

• G and H

• H and J

• F and J

Where will A' be at, if triangle ABC is reflected by
(x,y) --> (-x,y)?

• (2,1)
• (1,-2)
• (-1,2)

Reflect over x-axis. Which point would be at (3, -6)

• A
• B
• C
• H

Reflect Point C over the y-axis:

• (-3, 2)
• (3,2)
• (-2,3)
• (3,0)