Reflections

What axis is the triangle being reflected over?

• X-axis

• Y-axis

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

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.HSG.CO.A.5

CCSS.8.G.A.3

Reflect the point (2, -4) over the y-axis.

• (-4, 2)

• (-2, 4)

• (-2, -4)

• (2, 4)

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

Reflect (6, -3) over the line x-axis.

• (6, 3)

• (-6, -3)

• (-3, 6)

• (3, -6)

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

∆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.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Triangle ABC has vertices A(5,2).  Find the coordinates of ABC after a reflection over the x-axis.

• A’(5, -2)

• A’(-5, -2)

• A’(-5, -2)

• A'(5,2)

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

What is the rule for the following reflection? 

• Reflection across      x-axis

• Reflection across        y-axis

• Reflection across            y = x

• Reflection across          y = −x

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Reflect Point C over the y-axis:

• (-3, 2)

• (3,2)

• (-2,3)

• (3,0)

Tags

CCSS.HSG.CO.A.5

CCSS.8.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.HSG.CO.A.5

CCSS.8.G.A.3

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.1

CCSS.8.G.A.2

CCSS.8.G.A.3