Keystone Algebra

Find the product.
(x + 7)²

• x² + 7x + 7x + 49

• x² + 7x + 7

• 7x² + x + 7

• x² + 14x + 49

Match the system to the graph (solution set is on the left)

• y ≤ 3x   and  y ≤ -2x + 4

• y > 3x   and  y > -2x + 4

• y < 3x   and  y > -2x + 3

• y > 3x   and  y < -2x + 4

Which of the following is not a solution to this system of inequalities?

• (0,-1)

• (0,3)

• (4,0)

• (6,-2)

Write an equation in slope-intercept form of the line that passes through the given points: (-4,-7) and (-6,9)

• y = 8x + 39

• y = -8x - 39

• y = -8x - 32

• y = 8x + 32

A graph of a relation is shown below:
Which statement about the relation is true? 

• The relation is not a function of x because all functions are linear

• The relation is a function of x because values of x increase towards infinity

• The relation is a function of x because each value of y corresponds to one value of x

• The relation is not a function of x because more than one value of y may correspond to the same value of x

Which graph is a function?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

• A

• B

• C

• D

• A

• B

• C

• D

A relation is shown below:
{(2, 140), (5, 350), (14, 960)}
What is the domain of the relation?

• {2, 5, 14}

• {140, 350, 960}

• {all whole numbers from 2 to 14}

• {all whole numbers from 140 to 960}

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