Coordinate Plane - Polygon

Front

What is a coordinate plane?

Back

A coordinate plane is a two-dimensional surface formed by the intersection of a horizontal line (x-axis) and a vertical line (y-axis). Each point on the plane is defined by an ordered pair (x, y).

Front

What is an ordered pair?

Back

An ordered pair is a pair of numbers used to locate a point on a coordinate plane, written in the form (x, y).

Front

What is the x-coordinate in an ordered pair?

Back

The x-coordinate is the first number in an ordered pair, representing the horizontal position on the coordinate plane.

Front

What is the y-coordinate in an ordered pair?

Back

The y-coordinate is the second number in an ordered pair, representing the vertical position on the coordinate plane.

Front

How do you calculate the area of a rectangle?

Back

Area = length x width.

Front

What is the area of a rectangle with length 7 units and width 3 units?

Back

Area = 7 x 3 = 21 square units.

Front

What is the distance between two points on a horizontal line?

Back

The distance is the absolute difference between their x-coordinates.

Front

What is the distance between points (10, 7) and (2, 7)?

Back

Distance = |10 - 2| = 8 units.

Front

How do you find the area of a polygon?

Back

For rectangles, use Area = length x width. For other polygons, use appropriate formulas based on their shapes.

Front

What is the area of a rectangle with vertices at (2, 1), (2, 8), (9, 8), and (9, 1)?

Back

Area = length x width = 7 x 7 = 49 square feet.