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

Tags

CCSS.6.EE.B.5

CCSS.6.NS.C.7

−2|−2r − 4| = -12

• {3,1}

• {-5,1}

• {-3}

• No Solution

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.5

CCSS.6.NS.C.7

CCSS.6.NS.C.8

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.7

CCSS.6.NS.C.8

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

• True

• False

Tags

CCSS.6.EE.B.5

Solve.

8 - 9|10r - 9| = -73

• r = 9/5, r = 0

• r = 0, r = 5

• r = 9/5, r = 1

• r = -63/10, r= 0

Tags

CCSS.8.EE.C.7

| x + 2 | = | 3 – x |

• 1/2

• 2, -3

• -2, 3

• no solution

|2x − 7| = |4x + 6|

• -2, 6

• 6, -2

• -13/2, 1/6

• 1/6, 13/2

|2+3x| = |4 − 2x|

• 6, 2/5

• 1/5, 2/5

• 5/2, 6

• -6, 2/5