Reflections

Which diagram shows a reflection across the x-axis?

• D

• C

• B

• A

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is a reflection?

• When you turn an object around a point.

• When you slide an object form one place to another.

• When you flip or mirror an object across a line.

• When you resize an object.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

True or False: When a point is reflected across a line of symmetry, it remains the same distance from that line.

• True

• False

Tags

CCSS.4.G.A.3

What changes when an ordered pair is reflected across the y-axis?

• Neither the x-value nor the y-value

• y-value only

• x-value only

• Both the x-value and the y-value

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which of the following is NOT preserved with a reflection?

• Angle measurement
• Distance between points
• Orientation
• Shape

Tags

CCSS.HSG.CO.A.2

Relfect the image over the y-axis.  Which quadrants will the image be located in?

• Quadrant I and II
• Quadrant II and III
• Quadrant III and IV
• Quadrant I and IV

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

How many lines of symmetry does this shape have?

• 0
• 1
• 2
• 4

Tags

CCSS.4.G.A.3

What is the Algebraic Notation 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

∆QRS contains the points: Q(4, 2) R(5, 1) S(3,7). If the triangle is reflected across the y-axis, what will S' be?

• S'(3, 7)
• S'(-3, 7)
• S'(-3, -7)
• S'(3, 7)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What does congruent mean?

• Same shape and same size
• Same shape but not necessarily same size
• Different shape and different size
• Different shape but same size

Tags

CCSS.8.G.A.2