Solving Absolute Value Equations - 7th

|v + 8| − 5 = 2 

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

Tags

TEKS.MATH.2A.6E

−2|−2r − 4| = -12

• {5,1}

• {-5,1}

• {-5}

• No Solution

Tags

TEKS.MATH.2A.6E

 |−2n| + 10 = −50

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

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.3

∣ 2x + 9 ∣ = 15

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

Tags

TEKS.MATH.2A.6E

Why is absolute value ALWAYS 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 refers to distance, and distance is always measured by positive numbers.

Tags

TEKS.MATH.6.2B

What is 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

TEKS.MATH.6.2B

3| −8x| + 8 = 80

• x = -7/3

  x = 7/3

• x = -3

  x = 3

• x = 11/3

  x = -11/3

• No Solution

Tags

TEKS.MATH.2A.6E

 $\left|x\right|\ =\ 9$  

• No solution

• x = 9 only 

• x = 9
  x= -9

• x=-9 only

Tags

TEKS.MATH.2A.6E

-|−2r − 1| = 11

• {-6,5}
• {5,-6}
• -6
• No Solution

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Solve the absolute value equation. 

• {7}
• {-7, 7}
• {0, 7}
• No Solution

Tags

TEKS.MATH.2A.6E