Quiz: Absolute Value Equations

Absolute value is ...

• distance from zero to a number

• positive numbers

• opposite numbers

• negative numbers

What is the absolute value of 

 $\left|-1.3\right|$  

• 1.3

• -1.3

• 0

What is the absolute value of

 $\left|-7.8\right|$  

• 7.8

• 1

• -1

• -7.8

Solve for x
l 5x l = 40

• x = 8 and x =-8
• x = 35 and x = -35
• Only x = 8
• No Solution

|v + 8| − 5 = 2 

• {-1,-15}
• {-1,-5}
• {-15,15}
• No Solution

|−4 + 5x| = 16

• {16/5,12/5}
• {4,-5}
• {-12/5, 4}
• 4

∣ 2x + 9 ∣ = 15

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

|6 - 2k| = 18

• k = -6
• k = -6, k = 12
• k = -6, k = -12
• k = -6, k = 5

|-2 - 4n| = 34

• n = -9, n = 8
• n = 9, n = 8
• n = -9
• n = 8

Solve:

• {24}
• {-6, -8}
• {16, 4}
• {24, -24}