Topic 4 Expression Review

A term that contains only a number is called a ....

• variable

• constant

• coefficient

• exponent

A ________ is a letter that represents an unknown value.

What is the 2 in the expression below called?

3w + 8 - 2x - 7

• constant

• variable

• coefficient

• term

Write an expression for the following situation. You purchase b pounds of bananas for $ 0.55 cents per pound and g pounds of grapes for $1.59 per pound.

• 1.59b + 0.55g

• 1.59 + 0.55bg

• 0.55b + 1.59g

• 2.14bg

On Saturday Luke drove 4x + 6 miles. On Sunday, he drove 3x - 8 miles. What is the total distance travelled?

• 7x + 14

• 7x -2

• x + 14

• x -2

On Saturday Luke drove 4x + 6 miles. On Sunday, he drove 3x - 8 miles. What is the difference in miles driven?

• 7x + 14

• 7x -2

• x + 14

• x -2

Simplify the expression 2(10 + x - 6)

• 20 + x - 12

• 20 + 2x

• 8 + 2x

• 8 + x

Simplify the expression. -4b + 8c + 12 - 8b - 2c + 6

• -12b + 6c + 6

• -12b + 6c +18

• -4b + 10c + 18

• -4b - 6c - 6

What is the factored form of -12b + 6c + 18?

• 6(-2b + c + 3)

• 2(-6b + 3c +8)

• 3(-4b + 2c + 5)

• 6( -2b + c + 12)

Distribute the following expression.

-3(4w + 8c -7)

• 7w -24c + 21

• -12w -24c -21

• -12w -24c -10

• -12w -24c +21