Riddle me this
Am I a function?
What's my function?
Fill in the blank
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
Given f(x) = 2x +1, find f(-3).
f(-3) = 2(-3) + 1
f(-3) = -6 + 1
f(-3) = -5
100
A table of values for a linear function is given. Fill in the missing value.
x -1 0 1
y 3 8 ?
y = 13
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 f(x)= x2 + x + 1 when x = -5
f(-5) = (-5)2 + (-5) + 1
f(-5) = 25 + (-5) + 1
f(-5) = 20+ 1
f(-5) = 21
200
A table of values for a linear function is given. Fill in the missing value.
x -1 0 1
y 3 -2 ?
y = -7
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 p(x) = x2 - 2 when x = -2
p(-2) = (-2)2 - 2
p(-2) = 4 - 2
p(-2) = 2
300
A table of values for a linear function is given. Fill in the missing value.
x 2 3 5
y 2 1 ?
y = -1
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 g(x) = 4x2 - 1 when x= -2
g(-2) = 4(-2)2 - 1
g(-2) = 4(4) - 1
g(-2) = 16 - 1
g(-2) = 15
400
A table of values for a linear function is given. Fill in the missing value.
x -21 0 21
y -4 -7 ?
y = -10
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
Given d(x) = 2(x + 4)2 - (x2 - 7), find d(-3).
d(-3) = 2((-3) + 4)2 - ((-3)2 - 7)
d(-3) = 2(-3 + 4)2 - (9 - 7)
d(-3) = 2(1)2 - (2)
d(-3) = 2(1) - (2)
d(-3) = 2 - (2)
d(-3) = 0
500
A table of values for a linear function is given. Fill in the missing value.
x 3 7 10
y -23 -55 ?
y = -79
500
The graph below represents the distance d from the ground, in meters, of a person in a ferris wheel, t seconds after they got on. Find the value of d(3), and explain what it means in the context of this situation.
d(3) = 4 means that 3 seconds after the person got on to the ferris wheel, they were 4 meters away from the ground.