Exploring Basic Algebraic Vocabulary

What is a variable in algebra?

• A combination of numbers and variables

• A number that changes its value

• A letter that represents a number

• A number that stands alone

Which of the following is an example of an equation?

• 3x + 5

• 4y - 2

• 5m - 1

• 2a + 3b = 7

What distinguishes an equation from an expression?

• An equation has variables

• An equation has numbers

• An equation has an equal sign

• An equation has coefficients

In the expression 2y, what is the coefficient?

• 2

• y

• 2y

• None

What is the coefficient in the expression 3x?

• None

• x

• 3

• 3x

In the expression x, what is the coefficient?

• x

• None

• 1

• 0

What is a constant in an algebraic expression?

• A combination of numbers and variables

• A number that changes its value

• A letter that represents a number

• A number that stands alone and does not change

In the expression 5h + 5, what is the constant?

• h

• 5h

• 5

• None

Write the expression for a variable T with a coefficient of 1 and a constant of 4.

• T - 4

• 4T + 1

• 1T + 4

• T + 4

In the expression 6M, what is the variable?

• 6M

• None

• M

• 6