Absolute Value
Functions
Domain/Range
Dependent/Independent Variables
Misc.
100
|x-6| = 4
x=2, x=10
100
f(x)=2x+1
Find f(4)
9
100
Find the domain and range for the following data set:
(3,5), (4,6), (8,10)
Domain: 3,4,8
Range: 5,6,10
100
Find the independent and dependent variable. Must be written, not screamed.
The Oregon Ducks football team loses when their QB plays poorly.
Dependent variable: Losing
Independent: The QB's performance
100
Is it a function?
(1,2), (2,3), (3,5), (3,10)
No!
200
|2x-8|=4
x=2, x=6
200
f(x)=5x-3
find f(2)
7
200
Find the domain and range for the following data set:
(1,3), (2,3), (2,5), (3,6)
Domain: 1,2,3
Range: 3,5,6
200
Find the independent and dependent variable. Must be written, not screamed.
The higher the GPA you earn, the better college you can get into.
Dependent: college
Independent: GPA
200
|-6| + |7|
13
300
|3x-12|=6
x=2, x=6
300
f(x) = x2 + 4x
find f(3)
21
300
(-2, 4), (-1, 3), (0,-1), (2,-2)
Map it!
-2 ------> 4
-1 -------> 3
0 ---------> -1
2 ---------> -2
300
Find the independent and dependent variable. Must be written, not screamed.
The more coffee I drink, the less sleepy I feel.
The less coffee I drink, the more sleepy I feel.
Dependent: sleepiness
Independent: coffee
300
Is it a function?
No! Does not pass the vertical line test.
400
|2x-8|=0
x=4 ONE SOLUTION
400
f(x) = 3x2 - 2x + 1
find f(2)
9
400
y=2x+1
Find the domain and range
Domain: all real numbers
Range: all real numbers
400
Find the independent and dependent variable. Must be written, not screamed.
The higher my screen time is on my cell phone, the worse I do in math class!
Dependent variable: Math performance
Independent variable: Screen time
400
A hiker is 200 feet from the mountain's midpoint elevation of 2,000 feet.
Create an absolute value equation for the hiker's possible elevations.
|h-2000|=200
500
10|x-5|=100
x=15, x=-5
500
f(x) = 2x2 - 4x
find f(10)
160
500
y= x2+3
What's the domain and range?
Domain: any number
Range: y>=3
500
Find the independent and dependent variable. Must be written, not screamed.
When it snows this winter, Mr. MacPherson's commute time to Scappoose will double or even triple in time.
Dependent variable: Commute time
Independent variable: Snow
500
Solve |4x+3y|For x=5 and y=-10
|-10| = 10