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 not a fraction or decimal.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction or ratio of two integers, where the denominator is not zero.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. It is always a non-negative value.

Front

How do you find the absolute value of -7?

Back

The absolute value of -7 is 7.

Front

What is the opposite of a negative integer?

Back

The opposite of a negative integer is a positive integer.

Front

What does it mean for two points to be reflections of each other on a coordinate plane?

Back

Two points are reflections of each other if they are the same distance from a line (like the x-axis or y-axis) but on opposite sides.

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 perimeter of a polygon?

Back

To calculate the perimeter of a polygon, add the lengths of all its sides.