Are You Having Fun(ction)?
Am I a function?
Slope
Identifying Independent and Dependent
Grab Bag
100
Is (2,5), (3,6), (4, 7) and (-3,6) a function?
YES
100
What is YES! NO input values repeat.
100
Find the slope of the line below using rise/run.
Rise = 2
Run = 3
100
Identify the independent and dependent variable
The number of quarters you put into a parking meter affects the amount of time you have on the meter.
Independent: number of quarters
Dependent: amount of time
100
Evaluate f(x) = 2x -3 for f(-3)
f(-3) = -9
200
These 2 words are used to describe the set of all x-values for a function.
What is the input and independent variable?
200
Is this a function and why?
What is no, because x's repeat at 8?
200
What is the formula for finding slope?
y2−y1/x2-x1
200
Identify the independent and dependent variables
The battery power remaining on your MP3 player is based on the amount of time you listen to it
Independent: Amount of time you listen
Dependent: Battery remaining
200
Complete the table
The unit price is $3.50 per pound, so the price for 5 pounds is $17.50
300
Daily double: You can bet up to 600 points on...... These two words is used to describe the set of all y-values of a function.
What is the output and dependent variable?
300
Graph 1
300
What is the slope of the points (1, 2) and (7, 4)?
1/3
300
Identify the independent and Dependent Variables
On a school field trip there is 1 chaperone for every 10 students
Independent: number of students
Dependent: Chaperones
300
For a basic subscription, a cable television provider charges an activation fee $50, plus $115 per month. What linear function represents the total cost of a basic cable subscription for t months?
f(t) =
f(t) = 115t = 50
400
_______ is a function of _________
y is a function of x
400
Which of the following is not a function?
a.) (0,1), (1,2), (2,3), (3,4)
b.) (0,2), (1,3), (4,3), (1,2)
c.) (1,3), (4,2), (2,0), (3,4)
d.) (1,2), (2,2), (3,2), (4,2)
B
1 can not have an output of 3 and 2
400
Find the Slope
Rise = -5
Run = 3
400
A veterinarian must weigh an animal before determining the amount of medication.
Label the Independent and dependent variable.
IV: weight
DV: Amount of medication
400
Write the linear function for the table (in function notation)
f(x) = 3x
500
This word describes a relation that pairs each x-value with only one y-value.
What is a function?
500
Which relation is NOT a function?
a.) (1,-5), (3,1), (-5,4), (4,-2)
b.) (2,7), (3,7), (4,7), (5,8)
c.) (1,-5), (-1,6), (1,5), (6,-3)
d.) (3,-2), (5,-6), (7,7), (8,8)
C
1 can't have a output of -5 and 5
500
What is the slope between the points (4, -3) and (-1, 3)?
6/-5
500
Label the Independent and dependent variable. AND create a depends on statement
5) Joe has enough money to buy 1, 2, or 3 DVDs at $15.00 each, if he buys any at all.
Independent :DVDs
Dependent: Cost
Cost of DVDS depends number of DVDs bought
500
Write the linear equation of the table in function notation
f(x) = 4x + 6