Introducing Algebraic Variables

Which expression represents 
the quotient of the sum of 
30 and a number (a), 
divided by 12?  

• 30/a  + 12

• (30 + a) / 12

• 30/a ÷ 12

• 30a/ 12

Which phrase best describes: 
1/2 y + 10 = 20 ?

• An equation with a constant term of 10

• An expression with a constant term of 10

• An equation with a variable that has a coefficient of 10 

• An expression with a variable that has a coefficient of 10

symbols, often letters, that represent different values in various situations.

• terms

• variables

• expressions

• constant

combines both numbers and letters using the arithmetic operations of addition (+), subtraction (–), multiplication (·), and division (÷) to express a quantity.

• algebraic expression

• variable

• coefficient

• term

a number multiplied by a variable

• term

• product

• algebraic expression

• coefficient

In 3x=12, the x is called the

• coefficient

• variable

• constant (term)

• equation

Which of these are the variables?

• 5p, 4h, 2

• 2

• p, h

• 5, 4

What is the coefficient of x?
8 + 5x - y

• 8

• 0

• 5

• -5

The number you see before a variable (Example: 6z, the 6 is the ________)

• coefficient

• variable

• term

• product

Find the coefficient in the algebraic expression.

• x

• 4

• 5

• 9