Riddle me this
Am I a function?
What's my function?
Vocabulary
Domain and Range
Graph What?
100
What month of the year has 28 days?
All of them
100
In a function, how many outputs can one input have?
Each input has one and only one output.
100
Evaluate y = 2x +1 when x = -3
y = -5
100
This word is used to describe the set of all inputs for a function.
Domain
100
Find the DOMAIN:
{(-2, 4), (3, 2), (2, 10)}
What is {-2, 2, 3}?
100
Based on the graph of function, What is y when x=2?
y = 3
200
What is cut on a table, but is never eaten?
A deck of cards
200
Yes
200
Evaluate y= x2 + x + 1 when x = -5
y = 21
200
This word is used to describe the set of all outputs of a function.
What is the range?
200
Find the RANGE in
What is {-6, -5, -2, 3, 5}
200
Based on the graph of function, what is y when x=0?
y = 4
300
What has a head and a tail but no body?
A Coin
300
Is this a function and why?
No because x=8 has two outputs (3 and -3)
300
Evaluate y = x2 - 2 when x = -2
y = 2
300
What is the vertex of a graph?
Max or Min
300
Find DOMAIN and RANGE:
D={-1 ≤ x ≤ 4}
R={-4 ≤ y ≤ 5}
300
Based on the graph of the function, what is y when x=4?
y = -2
400
If there are three apples and you take away two, how many apples do you have?
You have two apples
400
Does the following table represent a function?
x y
1 2
2 5
6 2
2 9
5 1
No, because the input (x) of 2 has two different outputs (y)
400
Evaluate y = 4x2 - 1 when x= -2
y = 15
400
How do you determine if a GRAPH is a function or not?
VLT
400
Find the DOMAIN and RANGE:
D = {ALL REAL NUMBERS}
R= {ALL REAL NUMBERS}
400
f(x) = 6x - 10
f(-3)
500
Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?
The letter “r”
500
No, vertical lines are not functions.
500
If y = 8 what is x if y = 2x + 4
x = 2
500
This word describes any set of ordered pairs where each x-value is paired with one y-value.
Function
500
Find the DOMAIN and RANGE:
D = {ALL REAL NUMBERS}
R = {y ≤ -5}
500
Given f(x) = -x + 9, if f(x) = 10
x = -1