Expressions--Write & Evaluate

Front

What is the formula for evaluating the square of a number?

Back

To evaluate the square of a number x, use the formula x².

Front

How do you evaluate an expression when given a specific value for the variable?

Back

Substitute the given value into the expression and perform the arithmetic operations.

Front

What is the result of evaluating x² when x = 7?

Back

49

Front

How do you evaluate the expression x ÷ 4 when x = 12?

Back

Substitute 12 for x: 12 ÷ 4 = 3.

Front

What is the expression for evaluating 3x + 8 when x = 2?

Back

Substitute 2 for x: 3(2) + 8 = 14.

Front

What is the value of 5² + n when n = 3?

Back

5² = 25, so 25 + 3 = 28.

Front

How do you express 'the product of 6 and s' in algebraic form?

Back

It is expressed as 6s.

Front

What does it mean to evaluate an expression?

Back

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

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

What is the value of x² when x = -5?

Back

(-5)² = 25.