Evaluating Expressions: Key Concepts and Techniques

What is the main goal of this video?

• To learn how to solve equations

• To understand the parts of an expression

• To graph functions

• To evaluate expressions

In the expression 2x + 3, what is the term '2' called?

• Variable

• Constant

• Coefficient

• Exponent

What do we call a number whose value is known in an expression?

• Variable

• Coefficient

• Constant

• Exponent

In the expression 2x + 3, what is 'x' referred to as?

• Variable

• Constant

• Exponent

• Coefficient

What is the result of the expression 2 * 3 + 4?

• 8

• 10

• 12

• 14

Why can't we simplify the expression 2x + 4 without knowing the value of x?

• Because it is a coefficient

• Because it is an exponent

• Because it is already fully simplified

• Because it is a constant

What is the value of the expression 2x + 4 when x is 3?

• 10

• 12

• 8

• 6

What is the result of evaluating the expression (x + 5)^2 when x is -2?

• 16

• 9

• 1

• 4

In the expression 6(m - 1) / (2m + 3), what is the value when m is 6?

• 1

• 2

• 3

• 4

What is the first step in evaluating the expression 6(m - 1) / (2m + 3) when m is 6?

• Divide 30 by 15

• Subtract 1 from 6

• Multiply 6 by 5

• Add 3 to 6