Introduction to Algebra

If a is the total water bottles inside the cardboard and b is the total water inside the plastic, the algebraic expression to represent the total water bottles based on the figure is ....

• 3a + 3b + 5

• 3a + 4b + 5

• 3a + 4b + 4

• 4a + 3b + 5

• 9 is a coefficient

• x is a constant

• 7 is a coefficient

• y is a variable

• -3

• -4

• 7

• z

• True

• False

• -3

• 3

• 1

• -1

• 3

Term that has a coefficient of x² equal to 1 and a coefficient of x equal to 3 is ...

• 3x² - x + 4

• 2x² + x - 5

• x² - 3x + 2

• x² + 3x - 5

If k = coefficient of xy, the wrong statement from the choices below is ...

• x² + 3xy + 4y², k = 3

• x²y - 5xy - y², k = -5

• xy² + 2xy + x²y, k = 1

• 4y² - 5x², k = 0

The correct expression for the statement below is ...

"Add 5y to the product of a and b"

• ab + 5y

• a + b + 5y

• 5y - ab

• 5y x a + 5y x b

Choose the correct expression for the statement below!

"Subtract 4 times the square of z from thrice of x"

• 4z² - 3x

• 3x - 4z²

• 3x - 4z

• 4z - 3x