Integers, Rational Numbers, and Coordinate Plane Review

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but does not include fractions or decimals.

Front

What are rational numbers?

Back

Rational numbers are numbers that can be expressed as a fraction or ratio of two integers, where the denominator is not zero.

Front

How do you write an ordered pair?

Back

An ordered pair is written in the form (x, y), where x is the x-coordinate and y is the y-coordinate.

Front

What does the x-coordinate represent in a coordinate plane?

Back

The x-coordinate represents the horizontal position of a point on the coordinate plane.

Front

What does the y-coordinate represent in a coordinate plane?

Back

The y-coordinate represents the vertical position of a point on the coordinate plane.

Front

How do you plot a point on a coordinate plane?

Back

To plot a point, start at the origin (0,0), move right or left according to the x-coordinate, and then move up or down according to the y-coordinate.

Front

What is the formula for finding the perimeter of a polygon?

Back

The perimeter of a polygon is found by adding the lengths of all its sides.

Front

If a polygon has sides of lengths 2 units, 3 units, 4 units, and 5 units, what is its perimeter?

Back

The perimeter is 2 + 3 + 4 + 5 = 14 units.

Front

What is the length of side AB if it measures 2 units?

Back

The length of side AB is 2 units.

Front

What is the length of side DE if it measures 3 units?

Back

The length of side DE is 3 units.