Are You Having Fun(ction)?
Am I a function?
Evaluating Functions
One to One or Many to One?
Domain & Range
Write the Function Rule
100
This word is used to describe the set of all inputs for a function.
What is the domain?
100
What is No, not a function? It does not pass the vertical line test.
100
y = 2x +1
let x = -3
What is y = -5 ?
100
This is a function. Is it one to one or many to one?
What is many to one?
100
Find the DOMAIN:
{(-2, 4), (3, 2), (2, 10)}
What is D: {-2, 2, 3}?
100
Write the function rule.
Kendra has a box of chocolates with 20 pieces in it and eats 2 pieces each day.
What is y = 20 - 2x
200
This word is used to describe the set of all outputs of a function.
What is the range?
200
What is Yes?
200
Let x = -5
Find y = 6x + 1
What is y = -29?
200
One to One or Many to One?
What is many to one since there are multiply points with the same y value.
200
Find the RANGE:
{(6,4), (-9,8), ( 7, 4)}
What is R: {4,8}
200
Write the function rule.
Pam has $135 in her bank account and adds $45 each month to save for a new bike.
What is y = 135 + 45x?
300
Name 2 other terms that are synonyms for Domain
Input, x or Independent Variable
300
The mapping diagram shows a function or not.
What is No, not a function?
300
Based on the graph of the function, if y = 3 then this is the corresponding x value.
What is x = 2?
300
One to One or Many to One?
One to one since each y value is not repeated.
300
John earns $10 each hour at his job. The domain is represented by what variable?
What is hours?
300
Write the function rule.
Jermaine had 300 ounces of cat litter and used 10 ounces each day.
What is y = 300 - 10x
400
How do you determine if a GRAPH is a function or not?
What is the Vertical Line Test?
400
Does the following table represent a function?
x y
1 2
2 5
6 2
2 9
5 1
What is No, because the domain of 2 has two different ranges 5 and 9
400
Evaluate this function for x = -4, if y = 5x + 2
What is y = -18
400
One to One or Many to One?
{(2, 3), (4, 5), (6, 7), (7,7)}
Many to one since the y-value of 7 repeats.
400
James buys tickets to a concert that cost $20 each.
What are the first 3 realistic domain and range values for this situation?
Domain is # of tickets
D: {0, 1, 2...}
Range is total cost
R: {0, 20, 40...}
400
Francie weighed 154 pounds and lost 6 pounds each month. The function rule is y = 154 - 6x.
What does y represent?
What does x represent?
y = total weight
x = # of months
500
This word describes any set of ordered pairs where each x-value is paired with one y-value.
What is a Function?
500
Is this a function and why?
What is no, because the range of 8 repeats?
500
Find y = 0. The corresponding x value(s) are...
What is x = -2 and x = 4
500
One to One or Many to One?
{(0,0), (1,1), (2,2), (3, 3)}
One to One since no x or y values repeat.
500
Daisy orders boxes of candles. There are 6 candles in each box.
What are the first three input and output values for the realistic domain and range?
Domain: # of boxes
D: {0,1,2...}
Range: Total number of Candles
R: {0, 6, 12 ...}
500
Jake has a vintage car that is worth $45,000. Each year, it increases in value by $700.
The function rule is y = 45,000 + 700x
What does y represent?
What does x represent?
y represents the total value of the car.
x represents the number of years.