Reflection and translation

Is the picture being reflected in the y-axis or x-axis?

• y-axis
• x-axis

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the algebraic representation of translating a figure 3 units left and 5 units down?

• (x+5, y-3)
• (x-5, y+3)
• (x-3, y+5)
• (x-3, y-5)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Translations are always _______

• Congruent

• Bigger

• Smaller

• Similar

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A flip is also called a _________.

• Translation

• Reflection

• Rotation

• Dilation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

State the line of reflection.

• Reflection across y-axis
• Reflection across x-axis
• Reflection across x = 1
• Reflection across y = 1

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

State the line of reflection

• x = 1

• x axis

• y = 1

• y = - 1

• x = - 1

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

State the line of reflection

• y axis

• x = 2

• x = - 2

• y = - 2

• y = 2

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

In the figure, triangle PQR has vertices P(0, −1), Q(3, −1) and R(5, −3). What are the vertices of the image after the translation (x, y) → (x − 5, y + 1)?

• P′ (1, −6), Q′ (4, −6), R′ (6, −8)
• P′ (−5, 0), Q′ (−2, 0), R′ (0, −2)
• P′ (5, −2), Q′ (8, −2), R′ (10, −4)
• P′ (−1, 4), Q′ (2, 4), R′ (4, 2)

Tags

CCSS.HSG.CO.A.2

Triangle XYZ is translated so that X′ is at (4, –2). Which rule defines this translation?

• (x + 2, y – 6)
• (x – 6, y + 2)
• (2x, y – 6)
• (x – 2, y + 6)

Tags

CCSS.HSG.CO.A.2

Which reflection does the image show?

• Reflection across the x-axis according to the rule (x, y) → (x, −y)
• Reflection across the y-axis according to the rule (x, y) → (x, −y)
• Reflection across the x-axis according to the rule (x, y) → (−x, y)
• Reflection across the y-axis according to the rule (x, y) → (−x, y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5