Algebraic Vocabulary Flashcards

All 6 cards in this deck

What is an expression?

A collection of terms with no equals sign, e.g. $3x + 5y$.

What is an equation?

A statement with an equals sign that can be solved to find an unknown, e.g. $5x - 3 = 12$.

What is a formula?

A rule connecting two or more variables, written with an equals sign, e.g. $v = u + at$.

What is a term?

A single number, letter, or number and letters multiplied together, separated from others by $+$ or $-$.
e.g. $5y$ is a term in $3x + 5y$.

What is an identity?

A statement that is true for every value of the letters, written with $\equiv$, e.g. $2x + 3x \equiv 5x$.

True or false? $7y + 4$ is an equation.

False. It has no equals sign, so it is an expression.