Keystone Review

The greatest common factor (GCF) of 2 monomials is 3x²y.  One of the monomials is 3x⁴y.  Which could be the other monomial?

• 3xy²
• 6x²y³
• 9x⁶y²
• 18x⁶y²

Tags

CCSS.6.NS.B.4

When x=2, which expression can be completely simplified to 4√5?

• 2√5x
• 2√10x
• 5√2x
• 8√5x

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSN.RN.A.2

Simplify: 
(3x²+8x-8)-(-x²+6x+4)

• 2x²+8x-4
• 2x²+8x-12
• 4x⁴+8x-4
• 4x²+2x-12

Tags

CCSS.HSA.APR.A.1

In an experiment, a plant grows 0.05 centimeters per day.  The plant had a height of 2 centimeters when the experiment started.  Which equation describes the relationship between the number of days (d) the experiment lasts and the height (h), in centimeters, of the plant?

• h=0.05d+2
• h=0.05(2)+d
• h=2d+0.05
• h=2.05d

Tags

CCSS.HSF-BF.A.1A

Sylvia studied a new language.  The equation below describes how many words she knew (y) after studying the language for x days.
y=5x+18
The ordered pair (6,48) is a solution of the equation.  What does the solution represent?

• Sylvia knew 6 words after 48 days.
• Sylvia knew 6 words after 6 days
• Sylvia knew 48 words after 6 days
• Sylvia knew 48 words after 48 days

Tags

CCSS.HSF.LE.B.5

The graph below shows the relationship between the number of minutes (x) that have passed since an airplane began its decent and height above the ground (y), in feet, of the airplane.
Based on the graph, how long after it starts its decent will the airplane reach a height of 3,000 feet?

• 14 minutes
• 16 minutes
• 28 minutes 
• 32 minutes

Tags

CCSS.HSF.LE.B.5

• A

• B

• C

• D

Tags

CCSS.8.NS.A.2

• A
• B
• C
• D

• A
• B
• C
• D

Tags

CCSS.HSA.APR.D.6

• A

• B

• C

• D