Coordinate Planes

Front

What is a coordinate plane?

Back

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

Front

What are ordered pairs?

Back

Ordered pairs are pairs of numbers used to locate points on a coordinate plane, written in the form (x, y), where x is the horizontal position and y is the vertical position.

Front

What is the x-axis?

Back

The x-axis is the horizontal line on a coordinate plane where the y-coordinate is zero. It runs left to right.

Front

What is the y-axis?

Back

The y-axis is the vertical line on a coordinate plane where the x-coordinate is zero. It runs up and down.

Front

What are the four quadrants of a coordinate plane?

Back

The four quadrants are: Quadrant I (x positive, y positive), Quadrant II (x negative, y positive), Quadrant III (x negative, y negative), Quadrant IV (x positive, y negative).

Front

How do you identify the quadrant of a point?

Back

To identify the quadrant of a point (x, y), check the signs of x and y: Quadrant I (both positive), Quadrant II (x negative, y positive), Quadrant III (both negative), Quadrant IV (x positive, y negative).

Front

What is the origin in a coordinate plane?

Back

The origin is the point (0, 0) where the x-axis and y-axis intersect.

Front

How do you move on a coordinate plane?

Back

To move on a coordinate plane, you can go right or left (x-axis) and up or down (y-axis) based on the values of the ordered pair.

Front

What does it mean to go right 1 and up 1 from a point?

Back

Going right 1 means increasing the x-coordinate by 1, and going up 1 means increasing the y-coordinate by 1.

Front

What does it mean to go left 2 and down 4 from a point?

Back

Going left 2 means decreasing the x-coordinate by 2, and going down 4 means decreasing the y-coordinate by 4.