3.06a Algebraic Expressions

A variable is a ________________ or __________________ that represents an unknown value.

• letter or symbol

• term or expression

• constant or coefficient

• noughts or crosses

Identify the variable of the algebraic expression:

3x + 5

• 3

• x

• 5

• 3x and 5

Identify the coefficient of the algebraic expression:

3x + 5

• 3

• x

• 5

• 3x and 5

Identify the constant of the algebraic expression:

3x + 5

• 3

• x

• 5

• 3x and 5

Identify the terms of the algebraic expression:

3x + 5

• 3

• x

• 5

• 3x and 5

Identify the variable of the algebraic expression:

m - 6

• 1

• m

• -6

• 6

Identify the coefficient of the algebraic expression:

m - 6

• 1

• m

• 6

• -6

What is red:

y + 5x - 10

• coefficients

• terms

• variables

• constants

How many terms in the following expression:

5x + 3y - 15 + x

• 6

• 2

• 3

• 4

A _______________ is a symbol, usually a letter, that stands for an unknown quantity.

• term

• variable

• coefficient

• constant