Math Homework Tips

Rational Numbers and the Number Line—Rational numbers are described as numbers that can be written as a/b, where a and b are integers and b is not equal to 0. Rational numbers can be negative. Decimals, fractions, and integers are all rational numbers.

Solutions of Inequalities—An inequality is a mathematical sentence that compares two expressions using the symbol , .

A solution of an inequality is a value of a variable that makes the inequality true. Inequalities can have more than one solution.

For the inequality a < 3, a = 1 is a solution because 1 is less than 3. a = 3 is not a solution because 3 is not less than 3.

Write Inequalities—Here are some ways to express each inequality symbol in words.

< less than, under, not as much as

greater than, over, more than

> greater than or equal to, at least, no less than