Front

What is the definition of a real number?

Back

A real number is any value that represents a quantity along a continuous line, including all rational and irrational numbers.

Front

What is the set of natural numbers (N)?

Back

The set of natural numbers includes all positive integers starting from 1: N = {1, 2, 3, ...}.

Front

What is the set of integers (Z)?

Back

The set of integers includes all whole numbers, both positive and negative, as well as zero: Z = {..., -3, -2, -1, 0, 1, 2, 3, ...}.

Front

What is the set of rational numbers (Q)?

Back

The set of rational numbers includes all numbers that can be expressed as a fraction of two integers, where the denominator is not zero.

Front

What is the x-intercept of a linear equation?

Back

The x-intercept is the point where the graph of the equation crosses the x-axis, found by setting y = 0 and solving for x.

Front

How do you solve a compound inequality?

Back

To solve a compound inequality, isolate the variable in the middle and express the solution as a range of values.

Front

What is interval notation?

Back

Interval notation is a way of writing subsets of the real number line using parentheses and brackets to indicate whether endpoints are included.

Front

What does the symbol ≤ mean?

Back

The symbol ≤ means 'less than or equal to' and is used to compare two values.

Front

How do you find the solution to an inequality?

Back

To find the solution to an inequality, isolate the variable and express the solution in either inequality or interval notation.

Front

What is the process for graphing a linear equation?

Back

To graph a linear equation, find two or more points that satisfy the equation and plot them on a coordinate plane, then connect the points with a straight line.