Are You Having Fun(ction)?
Am I a function?
Evaluating Functions
Domain & Range
Discrete or Continuous
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
f(-3) = 2x +1
f(-3) = ?
What is f(-3) = -5 ?
100
Find the DOMAIN:
{(-2, 4), (3, 2), (2, 10)}
What is D: {-2, 2, 3}?
100
another name for ROC
What is Slope
100
Write the function rule.
Kendra has a box of chocolates with 20 pieces in it and eats 2 pieces each day.
What is f(x) = 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 f(x) = 6x + 1; find f(-5).
What is f(-5) = -29?
200
Find the RANGE:
{(6,4), (-9,8), ( 7, 4)}
What is R: {4,8}
200
Is this data discrete or continuous? How do you know?
What is discrete? The dots are not connected since cakes are countable and cannot be donated in fractional pieces.
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 f(x) = 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 f(x) = 3 then this is the corresponding x value.
What is x = 2?
300
John earns $10 each hour at his job. The domain represents _________?
What is hours?
300
The domain of a situation is # of dogs. The range is the total length of all the dogs.
Is this Discrete or Continuous?Why?
The DOMAIN is DOGS which are countable. Therefore, the data is DISCRETE
300
Write the function rule.
Jermaine had 300 ounces of cat litter and used 10 ounces each day.
What is f(x) = 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 P(-4) if
P(x)=5x + 2
P(-4)=-18
400
James buys tickets to a concert that cost $20 each.
What are the first 3 realistic range values for this situation?
Range is total cost
R: {0, 20, 40...}
400
Domain: Temperature
Range: # of People at the Pool
Discrete or Continuous?
What is Continuous?
Temperature can be measured and has fractions and decimals. Therefore the data is continuous.
400
Francie the narwhal weighed 154 pounds and lost 6 pounds each month. The function rule is f(x) = 154 - 6x.
What does f(x) represent?
f(x)= total weight
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 f(x) =0. The corresponding x value(s) are...
What is x = -2 and x = 4
500
Daisy orders boxes of candles. There are 6 candles in each box.
What are the first three input values for the realistic domain?
Domain: # of boxes
D: {0,1,2...}
500
Create your own graph that would represent discrete data.
Answers will vary
500
Jake has a vintage car that is worth $45,000. Each year, it increases in value by $700.
The function rule is V(x) = 45,000 + 750x
What does x represent?
x represents the number of years.