Modeling Expressions

Which expression is shown here?

• 3x + 2 + 2x + 6
• 3x + 2x + 2x + 6x
• 3 + 2 + 2 + 3

What term is represented by the algebra tiles?

• 6
• -6
• 6x
• -6x²

Look at the model. Which of the following algebraic expressions could it represent?

• 2x + 5 + 4x + 4
• 2x + 3 + 4x + 3
• 3x + 3x
• 2 + 4

Which expression is modeled?

• -3x - 6

• 3x + 6

• -6x + 3

• 3x - 6

Which expression is modeled?

• -3x - 4

• -4x -3

• 3x - 4

• -3x + 4

Which expression is being modeled?

• -4x + 7

• 4x -7

• -4x -7

• -7x + 4

Which expression is represented?

• -2x + 4

• 4x - 2

• 2x + 4

• 2x - 4

How many terms are there in the expression below?

19 + 2x - 4 + 6x - 8x

• 2

• 3

• 4

• 5

How many terms are there in the expression below?

19 + 2x - 4 + 6x - 8x² + y

• 3

• 4

• 5

• 6

Which is the coefficient below?

19x + 17

• 19

• x

• 19 and x

• 17