Algebra 1 Review

What is the first step (after setting up your workspace) in solving this equation:
5x + 7 = 12

• Divide by 5
• Subtract 5
• Multiply by 7
• Subtract 7

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

**

• 8
• -7
• -8
• 4

Tags

CCSS.8.EE.C.7

∣ 2x + 9 ∣ = 15

• x = 3  
  x = 6
• x = 3
  x = -6
• x = 3
  x = -12
• x = 6
  x = -12

Which equation has a solution of 24?

• -48 + 12 + x = -12
• -14 + 12 + x = -12
• -31x - 41x = -48
• -46x + 48x = 12

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

Find the Error
What error did the student make when solving the equation:
1/5x + 6 = 3/5x + 5
1x + 6 = 3x + 5
-2x + 6 = 5
-2x = -1
x = 1/2

• The student found an incorrect common denominator
• The student did not multiply all terms by the common denominator
• The student did not use opposite operations appropriately
• The student did not correctly eliminate the variable from one side of the equation

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

-4x + 14 ≤ 54

• x ≥ - 10
• x ≤ -10
• x ≥ 10
• x ≤ 10

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

Solve 24 > -3r > -9 

• -8 < r < 3
• -8 > r > 3
• r > - 8 and r > 3 
• r > -8 or r < 3

Tags

CCSS.HSA.REI.B.3

x+8 < 3  or  -8x < -40 

• x > -5 or x < 5
• x < -5 and x > 5
• x < -5 or x > 5 
• x > -5 and x < 5 

Write an inequality for the following description:  Nine times a number decreased by four is at least twenty-three.

• 9n - 4 < 23
• 9n + 4 > 23
• 9n - 4 ≥ 23
• 9(n - 4) ≥ 23

What is the domain of the graph?

• 1≤ x ≤ 4
• 1 < x < 4
• 1≤ y ≤ 4
• 1 < y < 4

Tags

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.5