Absolute Value Equations (A2.3a)

Evaluate each expression.
| x + 9 | = -5

• -14
• -4
• {-14, -4}
• no solution

Tags

CCSS.8.EE.C.7

How many solutions does this absolute value equation have

| x – 3 |= 0?

• One solution

• No Solution

• Two Solutions

• Infinitely Many Solutions

∣ 2x + 9 ∣ = 15

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

Tags

CCSS.6.NS.C.7C

−2|−2r − 4| = -12

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

Tags

CCSS.7.EE.B.3

Solve |2x –3| + 5 =10.

• -1, 1
• -1, 4
• -1, -4
• 1, 4

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Solve:

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

Tags

CCSS.8.EE.C.7

What is the reason that absolute value is always written as a positive?

• Absolute value is talking about numbers so it must be positive.
• Absolute value does not always have to be positive.
• Absolute value is like a clock it has only positive numbers.
• Absolute value is talking about distance, distance is always measured by positive numbers.

5 - 10| -10p -1| = -5

• p = -1/5, p = 4
• p = 0, p = -1/5
• p = 4, p = -2
• p = 2, p = 3

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

-8|6n - 7| - 6 = -14

• n = 1, n = 2
• n = 4/3, n = 3
• n = 1, n = 4/3
• n = 3, n = -6

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.A.2

Solve:
 |−2n| + 10 = −50

• {30, -30}
• {20,-20}
• {-5,5}
• No Solution

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3