Intro to Expressions, Equations, and Inequalities

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (like +, -, *, /) that represents a value but does not include an equality sign.

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically including an equals sign (=).

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two values, showing that one is greater than or less than the other, using symbols like <, >, ≤, or ≥.

Front

What is a variable?

Back

A variable is a letter or symbol that represents an unknown value in mathematical expressions or equations.

Front

What is a constant in mathematics?

Back

A constant is a fixed value that does not change, such as a number in an expression.

Front

What is a coefficient?

Back

A coefficient is a numerical factor that multiplies a variable in an expression, such as the 7 in 7c.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equals sign and represents a value, while an equation has an equals sign and states that two expressions are equal.

Front

What does the symbol '<' represent?

Back

The symbol '<' means 'less than' in an inequality.

Front

What does the symbol '>' represent?

Back

The symbol '>' means 'greater than' in an inequality.