absolute value equations

|v + 8| − 5 = 2 

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

Tags

CCSS.6.EE.B.5

CCSS.6.NS.C.7

|−2r − 1| = 11

• {-6,5}

• {5,-6}

• -6

• No Solution

−2|−2r − 4| = -12

• {5,1}

• {-5,-1}

• {-5}

• No Solution

|2v + 8| − 6 = 2

• {0,-8}

• {-1,-6}

• {-8,8}

• No Solution

Solve |2x –3| + 5 =10.

• -1, 1
• -1, 4
• -1, -4
• 1, 4

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.NS.C.7

Solve |x – 12| - 3 = 11.

• -2, -26
• -2, 26
• 3, 25
• 4, -7

Tags

CCSS.7.NS.A.3

Solve for x.
2|x + 1| - 5 = 5

• x = 4 & x = 6
• x = -4 & x = 6
• x = -6 & x = 4
• no solution

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

∣ 2x + 9 ∣ = 15

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

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

CCSS.6.NS.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.

Tags

CCSS.6.NS.C.7C

What's a way to define absolute value?

• The value of a number
• The opposite of a number
• The distance of a number from zero
• The multiplicative inverse of a number

Tags

CCSS.6.NS.C.7C