Equation Vocabulary

Front

What is an expression?

Back

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

Front

Which of the following is an expression? 5x + 2 - 8 = 25, 14 = 5y, 2h + 8, 9 - r = 17

Back

2h + 8

Front

What is the vocabulary word for the 4 in the expression -5y + 4?

Back

constant

Front

What is a variable?

Back

A variable is a symbol (usually a letter) that represents an unknown number.

Front

True or False: A variable is a symbol (letter) that represents a number. It is the unknown.

Back

True

Front

What is the vocabulary word for the -5 in the expression -5y + 4?

Back

coefficient

Front

Which of the following is an equation? 4x, 3y - 18 + x, c^2 - c - 1, 4x + 2 = 5 - x

Back

4x + 2 = 5 - x

Front

What is a coefficient?

Back

A coefficient is a number that is multiplied by a variable in an expression.

Front

What is a constant?

Back

A constant is a fixed value that does not change.

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.