Algebra review unit 1 and 2

Solve for x:
2(3x + 4) + 2 = 4 + 3x

• 2
• -2/3
• 10
• -2

What inequality does the number line graph represent?

• x <= 4
• x>= -4
• x < -4
• x < 4

Identify the slope, y-intercept, and whether the line is increasing or decreasing. 

• Slope = 2
  Y-int = (0, -2/3)
  Increasing
• Slope = -2/3
  Y-int = (2, 0)
  Decreasing
• Slope = -2/3
  Y-int = (0, 2)
  Decreasing
• Slope = -2/3
  Y-int = (2, 0)
  Decreasing

Identify the slope, y-intercept, and whether the line is increasing or decreasing. 

• Slope = -9
  Y-int = (0, 2)
  Decreasing
• Slope = -9
  Y-int = (0, 2)
  Increasing
• Slope = 9
  Y-int = (0, 2)
  Decreasing
• Slope = 2
  Y-int = (0, -9)
  Increasing

Which situation can be represented by 
y = 17x - 8?

• The number of seeds, y, needed to feed 8 hamsters 17 seeds each.
• The earnings from a lemonade stand, y, selling glasses at 17 dollars each with $8 in the tip jar.
• The cost, y, of buying 17 movie tickets that sell for $8 each. 
• The cost, y, of buying Star Wars figurines at $17 each with an $8 discount. 

Evaluate the following expression:

-3x² - 5x + 7 when f(-2)

• 5

• 10

• 12

• 7

Consider this table of x and y values.

Which of the following functions would describe the graph that best fits the points?

• f(x) = 3x + 9

• f(x) = x + 9

• f(x) = x + 3

• f(x) = 12x - 3

Which equation represents the values in the table?

• y = x

• y = 5x

• y = x - 4

• y = x + 4

Which is the graph of y=-x+2?

• A
• B
• C
• D

Solve:
2x + 1 = 2x - 1

• No Solution
• x = 0
• Infinitely Many Solutions