warm-up 10/26

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 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

What do you notice about the coordinates when a figure is reflected across the y-axis? (Hint: What is the rule?)

• (x,y) to (-x,y)

• (x,y) to (x,y)

• (x,y) to (-x,-y)

• (x,y) to (x,-y)

If point A was located at (4,-5), what would be the new coordinates if it were reflected over the y-axis?

• A' (-4,-5)

• A' (4,5)

• A' (-4,5)

• A' (4, -5)

What do you notice about the coordinates when a figure is reflected across the x-axis? (Hint: what is the rule?)

• (x,y) to (x,-y)

• (x,y) to (x,y)

• (x,y) to (-x,y)

• (x,y) to (-x,-y)