What are coordinates in a plane?

What are coordinates in a plane?

• A. The distance between two points.
• B. Angles formed by two lines.
• C. The slope of a line.
• D. Ordered pairs of numbers (x, y) indicating a point's location on a grid.

Answer: (D)

Coordinates locate a point on a plane using two numbers. The horizontal position is given by x and the vertical position by y, and the ordered pair (x, y) tells you exactly where to place the point relative to the origin. For example, (3, -2) means three units to the right and two units down from the origin. This focuses on pinpointing location on the grid, while the distance between points, the slope of a line, or the angles between lines describe other properties like separation, steepness, or rotation. Coordinates are what you use to plot and read exact points on the graph.

Coordinates locate a point on a plane using two numbers. The horizontal position is given by x and the vertical position by y, and the ordered pair (x, y) tells you exactly where to place the point relative to the origin. For example, (3, -2) means three units to the right and two units down from the origin. This focuses on pinpointing location on the grid, while the distance between points, the slope of a line, or the angles between lines describe other properties like separation, steepness, or rotation. Coordinates are what you use to plot and read exact points on the graph.