Coordinate Plane and Reflections

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.

Front

What are the four quadrants of the coordinate plane?

Back

Quadrant I (positive x, positive y), Quadrant II (negative x, positive y), Quadrant III (negative x, negative y), Quadrant IV (positive x, negative y).

Front

What does the x-axis represent?

Back

The horizontal axis in the coordinate plane where the y-coordinate is zero.

Front

What does the y-axis represent?

Back

The vertical axis in the coordinate plane where the x-coordinate is zero.

Front

What is an ordered pair?

Back

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

Front

In which quadrant is the point (3, -2)?

Back

Quadrant IV, because x is positive and y is negative.

Front

If a point lies on the x-axis, what can you say about its y-coordinate?

Back

The y-coordinate is zero.

Front

If a point lies on the y-axis, what can you say about its x-coordinate?

Back

The x-coordinate is zero.

Front

What is the reflection of a point across the x-axis?

Back

If the point is (x, y), its reflection across the x-axis is (x, -y).

Front

What is the reflection of a point across the y-axis?

Back

If the point is (x, y), its reflection across the y-axis is (-x, y).