Reflecting Shapes Over the X-Axis and Y-Axis

Reflecting over the y-axis changes the ____-_____________. 

• x-axis

• x-coordinate

• y-coordinate

• none of the above

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which of the following is an acceptable explanation why transformed figures are congruent to the original figures.

• The figures are actually NOT congruent.

• It depends on whether you translated, rotated, or reflected.

• Side lengths and angles measures stay the same when transformed.

• The figures look the same.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What is the sequence of transformations?

• Reflect over the y then reflect over the x

• Reflect over the x then reflect over the y

• Translate 4 units then rotate 90˚

• Rotate 90˚ then reflect over the x

Tags

CCSS.8.G.A.3

Which of the following describes the sequence of transformations shown?

• Reflect across the x-axis and then rotate -90 degrees around the origin

• Rotate -90 degrees around the origin and then translate down.

• Reflect across the x-axis and then reflect across the y-axis.

• Translate up and then rotate 90 degrees about the origin.

Tags

CCSS.8.G.A.3

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

• y-coordinate

• x-coordinate

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

The blue triangle is reflected over the x-axis. True or False?

• True

• False

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which graph is showing the pre-image reflected over the y-axis?

• 
• 
• 
• 

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If you were to reflect ABCD across the y-axis, what would the coordinate of A' be?

• (3, -5)

• (-3, 5)

• (-5, 3)

• (-5, 5)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Find K' if the figure is reflected across the x-axis (a)  

• (4, 1))

• (-1, -4)

• (1, -4)

• (1, 4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5