Evaluating Expressions

Front

What is the formula for evaluating the expression b² + 4?

Back

To evaluate the expression b² + 4, substitute the value of b into the expression and perform the operations. For example, if b = 3, then the evaluation is 3² + 4 = 9 + 4 = 13.

Front

How do you evaluate m² when m = 7?

Back

To evaluate m² when m = 7, substitute 7 for m in the expression: m² = 7² = 49.

Front

What is the process for evaluating m + n when m = 29 and n = 11?

Back

To evaluate m + n, substitute the values of m and n into the expression: m + n = 29 + 11 = 40.

Front

How do you evaluate the expression 2(a - 5) + 2 when a = 15?

Back

Substitute 15 for a in the expression: 2(15 - 5) + 2 = 2(10) + 2 = 20 + 2 = 22.

Front

What is the evaluation of 3d when d = 5?

Back

To evaluate 3d when d = 5, substitute 5 for d: 3d = 3(5) = 15.

Front

What does it mean to evaluate an expression?

Back

Evaluating an expression means substituting the values of the variables in the expression and performing the necessary arithmetic operations to find a numerical result.

Front

What is the significance of substituting values in algebraic expressions?

Back

Substituting values in algebraic expressions allows us to calculate specific outcomes based on given variables, making it easier to solve problems.

Front

What is the order of operations used when evaluating expressions?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

How do you handle parentheses when evaluating expressions?

Back

When evaluating expressions with parentheses, first calculate the value inside the parentheses before applying any other operations.

Front

What is the result of evaluating the expression 4x + 3 when x = 2?

Back

To evaluate 4x + 3 when x = 2, substitute 2 for x: 4(2) + 3 = 8 + 3 = 11.