Expressions & Input/Output Tables

What is the rule?

• Multiplicative, x8

• Additive, +20

• Multiplicative, x6

• Additive, +24

What is the rule?

• Multiplicative, x8

• Additive, + 20

• Multiplicative, x6

• Additive, x24

What is the rule?

• Additive, +10

• Multiplicative, x4

• Additive, +12

• Multiplicative, x6

A _____________ is a symbol, usually a letter that stands for a number. 

• coefficient
• algebraic expression
• variable
• term

Which of the following is an example of an algebraic expression?

• 3(2 + 7) - 10
• 78 - 5 + 3
• 3x + 6y
• 8(3) - 5 + 2

Write an expression for 63 fewer than a number

• 63 - n

• n + 63

• n - 63

• n * 63

Write an expression for 3 times the quotient of 81 and a number

• 3 x (81 - n )

• 3 + ( 81 + n)

In an algebraic expression, a variable is...

• a number

• a letter or symbol

• an operator

• an equal sign

The difference between an expression and an equation is

• an expression has an equal sign

• an equation has no equal sign

• an equation has an equal sign

• there is no difference

4 less than x

• 4-x

• x-4

• 4x

• x+4