Riddle me this
Am I a function?
What's my function?
Scatter plots
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
Draw a graph that could be modeled using a linear equation
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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
Draw a graph that could be modeled using a quadratic equation
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200
Based on the graph of function, what is y when x =-5?
y = 0
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
Draw a graph that could be modeled using a positive exponential equation
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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
Draw a scatter plot that has a weak negative correlation
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400
Based on the function, what is y when x = -3?
y = -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
What is a strong positive correlation? (Answer in your own words)
A positive correlation exists when one variable decreases as the other variable decreases, or one variable increases while the other increases.
500
What does the slope of a distance vs. time graph represent?
The speed of the object.