Algebra Chapter 0 Test Review

Three times a number increased by nine

• 3h-9

• 3(h-9)

• 3(h+9)

• 3h+9

Twice a number x plus 8

• 2+8x

• 2x+8

• 2(x+8)

• 8(2+X)

Name the coefficient of 9h+12

• h

• 12

• 9

• 1

What are the variables of 7x+6y-9

• 6 and 7

• 9

• 6y and 7x

• x and y

Identify the "like terms" in the expression:

2x + 4y - 3x + y - x

• 2x and 4y and -3x

• 2x and -3x and x, 4y and y

• they are all like terms

• there are no like terms

Identify the terms, coefficients and constants of the expression:

6q + 1

• Terms: 6q and 1

  Coefficients: 6

  Constant: 1

• Terms: 6 and 1

  Coefficients: 1

  Constant: q

• Terms: 6q

  Coefficients: 6

  Constant: 1

• Terms: 1

  Coefficients: 6

  Constant: 1 and q

How do we represent an unknown number in an expression?

• a variable

  ex: x, y, z

• a number

• a constant

• an operation

10 less than a number n

• 10 - n

• n - 10

• n + 10

• 10 - n

Combine like terms:

3x + 2x + 3y - 7y

• 5x + 10y

• 5x + 4y

• 5x - 4y

• 5x - 10y

Simplify by combining like terms:

5a + 2b - 3a + 4

• 8a + 2b +4

• 2a + 2b + 4

• 8ab

• 4ab + 4