Reflections on the Coordinate Plane

Front

What is the coordinate plane?

Back

A two-dimensional surface formed by the intersection of a horizontal line (x-axis) and a vertical line (y-axis), used to locate points using ordered pairs.

Tags

CCSS.5.G.A.1

Front

What are ordered pairs?

Back

A pair of numbers (x, y) that represent a point's position on the coordinate plane, where 'x' is the horizontal position and 'y' is the vertical position.

Tags

CCSS.5.G.A.1

Front

What does it mean to reflect a point across the x-axis?

Back

To reflect a point across the x-axis, you change the sign of the y-coordinate while keeping the x-coordinate the same.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does it mean to reflect a point across the y-axis?

Back

To reflect a point across the y-axis, you change the sign of the x-coordinate while keeping the y-coordinate the same.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of the point (4, 3) across the x-axis?

Back

(4, -3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the reflection of the point (-2, -5) across the y-axis?

Back

(2, -5)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point A is at (1, 2), what is the reflection of A across the y-axis?

Back

(-1, 2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If point B is at (3, -4), what is the reflection of B across the x-axis?

Back

(3, 4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the coordinates of a point when it is reflected across both axes?

Back

The x-coordinate and y-coordinate both change signs.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What are the coordinates of point C (5, 6) after reflecting across both axes?

Back

(-5, -6)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5