Absolute Value Functions

|2a - 10| = 6

• a = 8, a = 5
• a = 2
• a = 8
• a = 8, a = 2

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

|-7n + 4| + 9 = 34

• n = -3
• n = 1, n = 8
• n = -3, n = 4
• n = -3, n = 29/7

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.A.2

• No solution
• All real numbers
• -1 < a < 9/7
• -5/7 < a < 1

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.3

CCSS.HSA.REI.B.3

True or False: Is x = 4 a solution to |x + 5| = -9

• True
• False

|b-8|+10>22

• (-4,20)
• b < -4 or b > 20
  ∞∞∞
• 20<b<-4
• b=-4 or b=20

Given f(x) = -4x - 10 and f(x) = 10. Find x

• x = -5
• x = 5
• x = -50
• x = 30

Tags

CCSS.HSF.IF.A.2

 The blue is f(x)=|x|, red must be ____?

• g(x) =|x+2|
• g(x) =|x|+2
• g(x) =|x-2|
• g(x) =|x|-2

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.BF.B.3

CCSS.HSF.IF.B.4

CCSS.HSF.IF.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

Solve: |7-2x| = x

• x = 7 or x = -7

• x = 3/7 or x = 7

• x = 7/3 or x = 7

• x = 7/3 or x = -7

What is the vertex of the absolute value function?

• (4, 0)
• (0, 4)
• (-infinity, infinity)
• [4, infinity)

Tags

CCSS.HSF-IF.C.7D