Coefficient, Constant, Like Term, Evaluating

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable in an algebraic expression. For example, in 3x, 3 is the coefficient.

Front

What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change. For example, in the expression 3x + 5, 5 is the constant.

Front

What are like terms in algebra?

Back

Like terms are terms that have the same variable raised to the same power. For example, 2x and 3x are like terms, while 2x and 3y are not.

Front

Evaluate the expression 4x + 7 when x = 3.

Back

The value is 19.

Front

Evaluate the expression 5y - 2 when y = 4.

Back

The value is 18.

Front

How many terms are in the expression 2a + 3b + 4c + 5?

Back

There are 4 terms in the expression.

Front

Evaluate the expression 3m + 2n when m = 2 and n = 5.

Back

The value is 16.

Front

What is the difference between a variable and a constant?

Back

A variable is a symbol that represents an unknown value, while a constant is a fixed value.

Front

Evaluate the expression 6p + 3q when p = 1 and q = 2.

Back

The value is 12.

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.