Algebra One Review

The aquarium is draining a large fish tank. The pump they are using can drain 24 gallons per hour. After 3 hours, there are 78 gallons left in the tank. Write an equation in slope-intercept form to model the water left in the tank, y, after x hours of draining. How many gallons were originally in the tank?

What is the equation and slope of the line shown on the grid?

• y = 6; slope is -1

• x = 6; slope is zero

• y = 6; slope is 6

• x = 6; slope is undefined

Write the equation that best matches the graph shown.

• y = 4x

• y = 4x - 3

• y = 4/3 x + 4

• y = 4/3 x - 3

Choose the inequality that best matches the graph.

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Convert to slope intercept form:

What is the algebraic expression for the phrase "5 more than 3 times a number?"

• 8

• 5 + 3x

• 5 + 3 x 10

• 3 + n + 5

Solve  9 + 3x = 10

• 2/3

• 1/3

• -1/3

• 4

If a=2 b=7, solve

(16 + a) - (b + 5) =

• 11

• 2

• 6

• 0

Simplify this expression (combine like terms):
 x + x + x + x

• 4 - x

• 4x

• x

• x+4

Evaluate the expression if a=3 and b=6.
4a - b

• 43 - 6

• 37

• 1

• 6