Absolute Value Review

What is the domain of the absolute value function?

• (4, 0)

• (0, 4)

• (-infinity, infinity)

• [4, infinity)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

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

|2x - 3| = 15

• x = -6 or x = 9

• x = -9 or x = 6

• x = 9

• No Solution

|7x + 2| = 23

• No Solution

What is the equation of the absolute value function?

• f(x)= |x+4|

• f(x)= |x-4|

• f(x)= |x| + 4

• f(x)= |x| - 4

Tags

CCSS.HSF-IF.C.7D

f(x) = −|x+4|

• A

• B

• C

• D

Use Narrow, wide, or same to compare the width of this graph to the parent function.
y=4|x+3|-2

• Narrow

• Wide

• Same

What is the domain?

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the range?

|x + 1| = 8

• x = -7 or x = 9

• x = -9 or x = 7

• x = 7

• No Solution