Mastering Rotation and Reflection in the Coordinate Plane

What is the main topic of the video?

• Properties of triangles

• Solving quadratic equations

• Rules for rotations and reflections in the coordinate plane

• Graphing linear equations

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

When reflecting a point over the x-axis, what happens to the coordinates?

• The y-coordinate changes sign

• The x-coordinate changes sign

• Both coordinates change sign

• Neither coordinate changes sign

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

When reflecting a point over the y-axis, what happens to the coordinates?

• The y-coordinate changes sign

• Neither coordinate changes sign

• The x-coordinate changes sign

• Both coordinates change sign

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the result of reflecting the point (3, 1) over the line y = x?

• (-3, 1)

• (3, -1)

• (-1, -3)

• (1, 3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the result of reflecting the point (3, 1) over the line y = -x?

• (-3, 1)

• (3, -1)

• (1, 3)

• (-1, -3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

When rotating a point 90 degrees counterclockwise, what happens to the coordinates?

• The x-coordinate changes sign and they switch places

• The y-coordinate changes sign and they switch places

• Both coordinates change sign

• Neither coordinate changes sign

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

When rotating a point 180 degrees counterclockwise, what happens to the coordinates?

• Neither coordinate changes sign

• The x-coordinate changes sign

• The y-coordinate changes sign

• Both coordinates change sign

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

When rotating a point 270 degrees counterclockwise, what happens to the coordinates?

• Neither coordinate changes sign

• The x-coordinate changes sign and they switch places

• The y-coordinate changes sign and they switch places

• Both coordinates change sign

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the new coordinate of point B (1, 3) after rotating 90 degrees counterclockwise?

• (3, 1)

• (-3, 1)

• (-3, -1)

• (-1, 3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the new coordinate of point C (3, -1) after rotating 90 degrees counterclockwise?

• (-1, 3)

• (-3, -1)

• (-3, 1)

• (1, 3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5