Algebra Review

Which value of x will make the equation true?
-3(x + 4) - 2 = -7x + 18

• 4
• 6
• 8
• 10

Which of the equations below represents the third step of the solution process?
Step 1: 3(cx - 7) -3x = -15
Step 2: 6x - 21 - 3x = -15
Step 3:     ?  ?  ?  ?
Step 4: 3x = 6
Step 5: x = 2

• 3x + 21 = -15
• 3x = -36
• 21 - 3x = -15
• 3x - 21 = -15

What is the equation of the graph in the image?

• y < -2x + 2
• y > -2x + 2
• y ≤ -2x + 2
• y ≥ -2x + 2

What is the equation of the graph in the image?

• y < -(5/4)x + 3
• y > -(5/4)x + 3
• y ≤ -(5/4)x + 3
• y ≥ -(5/4)x + 3

The graph represents the cost to produce Gizmo's video game called Race Thru the Maze. Which of the following statements is true?

• To produce 60 games, it will cost $1.
• To produce 60 games, it will cost $1000.
• To produce 1 game it will cost $60. 
• The initial cost to produce the games is half a dollar. 

Which set of coordinates does not describe a function?

• {(5, 2), (2, 4), (1, 9), (1, -1)}
• {(0, -6), (-5, -6), (-1, 4), (2, 7)}
• {(-7, -5), (2, 2), (-3, 1), (5, -17)}
• {(8, 2), (-13, -4), (5, 1), (2, 0)}

Which of the graphs in the image are functions? Use the vertical line test to prove if it is or not.

• graph 1, graph 2, graph 3, graph 4, graph 5, graph 6
• graph 1, graph 2, graph 4, graph 5
• graph 3, graph 6
• graph 2, graph 3, graph 4, graph 5, graph 6

Xbox Live is promoting a new game plan in which the initial cost is $64.99 with a $1.50 charge for each day you play. The relationship for the total cost can be expressed by the function f(x) = 1.50x + 64.99, where x represents the number of days you play.  Which statement below is a correct representation of the slope?  

• The initial cost that will be charged is $64.99.
• There is $1.50 cost per day that xbox live will charge.
• The number of days you play will be unlimited.
• If you play 10 days it will cost you $74.99.

For Valentine’s Day, Jacob has saved $15 to spend on roses for his girlfriend.  Each rose costs $2.  Which solution set below represents the number of roses Jacob could buy his girlfriend?

• x > 8
• x > 7
• x ≤ 8
• x ≤ 7

Find the rate of change between x and y using the table.

• -2
• 0
• 2
• 4