The Vocab
Are You Having Fun(ction)?
Am I a function?
Independent or Dependent Variable
What's my function?
Tell me 'bout that graph
100

This word is used to describe the set of all inputs for a function.

What is the domain?

100

Is the following a relation or  a function? 

(1, 0), (2, 2), (3, 4)?

Function

100

No, it does not pass the vertical line test

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

Discrete, Continuous, or Neither

What is discrete?

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

Yes

200

Is TIME normally the independent or dependent variable?

Independent

200

f(12) if f(x) = 3x -5

31

200

find when they are the same

y =x + 3

y = -6x - 4

What is x = -1

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

Yes

300

Is COST normally the independent or dependent variable?

Dependent

300

f(2) if f(x) = x-4

-2

300

The points that show a rapid decline

What is D to E?

400
The test that is used to determine if a graph represents a function.

What is the vertical line test?

400

Is this a function and why?

What is no, because x's repeat at 8

400

No

400

The independent variable the X or Y axis?


X axis

400

f(5) if f(x) = 2x+8 

18

400

x-intercept(s)

What are -1, 1, 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

Yes

500

is the DEPENDENT variable graphed on the X or Y axis?


Y axis

500

f(2) if f(x) = x+ 5

9

500

y-intercept

What is -6?