Algebra 1 Keystone Review

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• D

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

Simplify: 
(3x²+8x-8)-(-x²+6x+4)

• 2x²+8x-4

• 2x²+8x-12

• 4x⁴+8x-4

• 4x²+2x-12

The set of ordered pairs shown below is a relation that is a function of x.

{(-5, 1), (-4, 1), (-3, 1), (-2, 1)}

Which ordered pairs could be included in the set so that the relation remains a function of x?

• (-6, 1), (-5, -1)

• (-6, 1), (-1, -1)

• (-2, 2), (-1, 1)

• (-3, 0), (-1, 1)

(4x+1)(5x−2)

• 20x² + 3x − 2

• 20x² − 11x + 5

• 20x² − 18x + 2

• 20x² − 3x − 2

−2|−2r − 4| = -12

• {5,1}

• {-5,-1}

• {-5,1}

• No Solution

| x + 1 | ≥ 3

• No Solution

• All Real Numbers

• x ≤ -4  or  x ≥ 2

• -4 ≤ x ≤ 2

Find the slope.

• -2

• 2

• ¹/₂

• -¹/₂

Write as an algebraic expression

the product of 5 and a number

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