Equivalent Expressions

Front

What is an equivalent expression?

Back

An equivalent expression is an expression that has the same value for all values of the variable(s) in the expression.

Front

Back

15

Front

What is the constant in the expression 3x + 5?

Back

5

Front

Are the expressions 4(y - 1) and 1 + 4y equivalent?

Back

No

Front

Evaluate the expression 2r + 1 when r = 3.

Back

7

Front

How do you express 'ten decreased by four times a number' algebraically?

Back

10 - 4x

Front

What is a variable in an algebraic expression?

Back

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

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the coefficient in the expression 3x + 5?

Back

3

Front

What is the difference between a term and an expression?

Back

A term is a single mathematical entity (like 3x), while an expression is a combination of terms (like 3x + 5).