Pre-AP Algebra I 1st Semester Review

Solve for z: 
8z - 22 = 3 ( 3z + 11) - z

• No Solution
• z = 0
• Identity
• z = 5

Find the slope of the line that passes through the points (2, 4) and (6, 12)

• 1/2
• -1/2
• 2
• -2

 Write the equation of the line that passes through the points (0, -5) and (4, 3)

• y=2x-5
• y=1/2x-5
• y=2x+5
• y=1/2x+5

What is the x-intercept shown on the graph?

• (2, 0)
• (-2, 0)
• (0, 3)
• (3, 0)

Convert the standard form equation into slope-intercept form.
4x - 3y = 15

• y = (4/3)x - 5
• y = ⅔x - 5
• x = ¾
• y = 27, 239, 430

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 
• As the temperature increases, the number of visitors increases. 
• As the visitors increase, the temperature decreases. 
• No correlation

Find the equation of the line of best fit for this table.

• y = -0.18x + 6.47
• y = 6.47x - 0.18
• y = 0.04x - 0.19
• y = -0.18x - 0.19

The solution is:

• (4, 3)
• (3, 4)
• (-4, 3)
• No solution

• Infinite number of solutions

• (0, 7)

• (-5, -7)

• (5, 7)

Solve by elimination:
4x+9y=28
-4x-y=-28

• (-7,0)
• (6,0)
• (-6,0)
• (7,0)