Topic 4 Test Review

Front

Evaluate when a = 15: 2(a - 5) + 2

Back

22

Front

A number with no variable attached is called a _____

Back

constant

Front

Evaluate the following expression: -x - 6x + 10 when x = 5

Back

-25

Front

AT&T charges $30 per month (m) for phone service and a one-time activation fee of $25. What expression describes the scenario?

Back

30m + 25

Front

Which of these are like terms in the following expression: 3x + 7 - 9x + 24y + 2x^2?

Back

3x, -9x

Front

What is a coefficient?

Back

A coefficient is a numerical factor in a term of an algebraic expression.

Front

What is a variable?

Back

A variable is a symbol used to represent an unknown value in mathematics.

Front

What is an expression?

Back

An expression is a combination of numbers, variables, and operations without an equality sign.

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 are like terms?

Back

Like terms are terms that have the same variable raised to the same power.