The Vocab
Are You Having Fun(ction)?
Independent or Dependent Variable
What's my function?
Domain and Range
100
This word is used to describe the set of all inputs for a function.
What is the domain?
100
Is the following a function?
(1, 0), (2, 2), (3, 4)?
yes
100
If a movie store rents movies for 3.95 each which of the following is the independent variable?
The number of movies
The cost to rent the movies
The number of movies
100
f(-3) if f(x) = 2x +1
-5
100
Find the DOMAIN:
{(-2, 4), (3, 2), (2, 10)}
What is {-2, 2, 3}?
200
This word is used to describe the set of all outputs of a function.
What is the range?
200
Is the following a function?
(1, 1),
(4, 1),
(5, 2),
(1, 2),
(2, 5)?
No, because the input 1 has two different outputs
200
Is TIME normally the independent or dependent variable?
Independent
200
f(12) if f(x) = 3x -5
31
200
Find the RANGE:
{(-2, 4), (3, 2), (2, 10)}
What is {2, 4, 10}?
300
This word describes a relation that pairs each x value with only one y value.
What is a function?
300
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)
300
Is COST normally the independent or dependent variable?
Dependent
300
f(2) if f(x) = x-4
-2
300
Find the DOMAIN:
x y
-1 -4
0 1
2 5
4 6
What is {-1, 0, 2, 4}?
400
This terms identifies the variable that is not changed by the other variable in a function
What is the Independent Variable
400
Is this a function and why?
What is no, because x's repeat at 8
400
The independent variable the X or Y axis?
X axis
400
f(5) if f(x) = 2x+8
18
400
Find the RANGE:
y is between -2 and 3
500
This term identifies the variable that changes based upon the other variable in a function.
What is the dependent variable?
500
Is this a function and why?
What is yes, because the x's are all different and have different y's
500
is the DEPENDENT variable graphed on the X or Y axis?
Y axis
500
f(2) if f(x) = x2 + 5
9
500
Find the DOMAIN:
What is {-2, 1, 2, 3}?