Intro to Reflections

Reflections are a transformation that change an image's

• shape

• size

• orientation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

You reflect ΔXYZ across the x-axis, what is the first step to drawing the image?

• Connect all of the dots to form a triangle

• Count/plot each new point the same number of units from the line of reflection

• Label the image points prime

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What axis is the image reflected over?

• X-axis

• Y-axis

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• F

• G

• H

• Not shown

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which answer shows a reflection across the x-axis?

• d
• c
• b
• a

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• A
• B
• C
• H

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflect Point C over the y-axis:

• (-3, 2)
• (3,2)
• (-2,3)
• (3,0)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Where will A' be at, if triangle ABC is reflected across the y-axis?

• (2,1)
• (1,-2)
• (-1,2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What quadrant will the image be in if reflected across the x-axis?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflections over the x-axis change the ____-__________. 

• y-coordinate
• x-coordinate

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5