Coordinate Grid Review

Front

What is a coordinate grid?

Back

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

Front

What are the coordinates of the origin on a coordinate grid?

Back

The coordinates of the origin are (0, 0).

Front

How do you plot the point (3, 4) on a coordinate grid?

Back

Start at the origin (0, 0). Move 3 units to the right on the x-axis, then move 4 units up on the y-axis to plot the point (3, 4).

Front

What are the four quadrants of a coordinate grid?

Back

Quadrant I (x > 0, y > 0), Quadrant II (x < 0, y > 0), Quadrant III (x < 0, y < 0), Quadrant IV (x > 0, y < 0).

Front

What is the distance formula for finding the length of a line segment between two points (x1, y1) and (x2, y2)?

Back

The distance formula is d = √((x2 - x1)² + (y2 - y1)²).

Front

What are the coordinates of a point in Quadrant I?

Back

In Quadrant I, both x and y coordinates are positive, e.g., (2, 3).

Front

What are the coordinates of a point in Quadrant II?

Back

In Quadrant II, x is negative and y is positive, e.g., (-3, 4).

Front

What are the coordinates of a point in Quadrant III?

Back

In Quadrant III, both x and y coordinates are negative, e.g., (-2, -5).

Front

What are the coordinates of a point in Quadrant IV?

Back

In Quadrant IV, x is positive and y is negative, e.g., (4, -3).

Front

How do you determine the length of a horizontal line segment?

Back

For a horizontal line segment, the length is the difference in the x-coordinates of the endpoints, e.g., for (-1, 6) and (8, 6), length = 8 - (-1) = 9 units.