Expressions and Variables

Evaluate the Expression if p = 7 17 - p

• 24

• -10

• 10

• -7

An algebraic expression can have a number (constant), a variable, and an ________________.

• letter

• solution

• operation

• equal sign

Evaluate the Expression if s = 10

24 + s

• 240

• 14

• 34

• 2410

Evaluate the expression if a = 3 and b = 4.

ab ÷ 3

• 11

• 4

• 3

• 1

a symbol for an unknown value; usually a letter (such as a, x, or y) is the symbol used

• constant

• variable

• coefficient

• term

Match the following vocabulary words to it's correct definition.

• Variable

• The number in front of the variable.

• Expression

• A number by itself with no variable attached.

• Term

• A placeholder, usually a letter, to represent an unknown number.

• Constant

• A number, a variable, or both.

• Coefficient

• A combination of terms.

Tags

6.13

The product of 7 and p

• 7p

• 7u

• 7+6

• 7 ÷ p

What is the definition of a variable?

• A letter or symbol that represents an unknown quantity

• The little number or letter used to raise to a power

• The number in front of a variable

• The number with no variable

A variable is defined as (a)  

• A letter or symbol that represents

• The little number or letter used to

• The number in front of a variable

• The number with no variable

What variable typically represents the domain?

• x

• y