Evaluating Expressions

Front

What is a coefficient in an expression?

Back

A coefficient is a numerical factor that multiplies a variable in an expression. For example, in the expression 4m, 4 is the coefficient.

Front

Identify the coefficient in the expression 4m + n + 2.

Back

4

Front

What are variables in an expression?

Back

Variables are symbols that represent unknown values. In the expression 3x + 9, x is the variable.

Front

Identify the variables in the expression 3x + 9.

Back

x

Front

What is a term in an expression?

Back

A term is a single mathematical expression that can be a number, a variable, or a combination of both, separated by addition or subtraction.

Front

How many terms are in the expression 3x + 2y + z?

Back

3

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with given numbers.

Front

Evaluate 5m + 7 if m = 5.

Back

32

Front

What is the process of substituting values in an expression?

Back

Substituting values involves replacing the variables in an expression with specific numbers to find the expression's value.

Front

Evaluate bc + 5a when a = 3, b = 4, and c = -6.

Back

-9