Function Vocab
Intervals
Is it a Function?(Graphs)
Is it a Function? Table
Is it a function? Mix
100
What do vampires famously hate and avoid eating?
Garlic
100
Evaluate f(x)=-3x if x=2
What is -6?
100
a. Is it a function?
Not a function!
100
a. Is it a function?
b. Find f(2)
a. Yes!!
b. f(2)=5
100
oes the relation represent a function?
Yes, each input has its own output.
(10,15)
(20,45)
(30,25)
(40,35)
200
What is Domain?
The set of first coordinates of a relation or a function
200
Evaluate f(x)=2x+1 if x=-2
What is -3?
200
a. Is it a function?
b. Find f(x)=2
a. Yes!
b. x = -5 and 4.2
200
a. Is it a function?
b. Find f (x) = 5
a. Not a function!
b. x = 2, 5
200
Which of the following graphs IS a function?
X) it is the only graph each input has its own output.Passes the vertical Line Test.
300
What is the Range?
The set of second coordinates in a relation or a function. Also known as the Y value.
300
Evaluate f(x)=-3 - x if x=6
What is -9?
300
a. Is it a function?
b. Find f(x)= 7
a. NO! f(7) = 0, -2
b. x = -2 f(7) = -2
300
a. Is it a function?
b. Find f(3)
a. NO!
b. f(3) = -1, 0, 1
300
Does this represent a function? Explain (-2,2) (-1,2) (0,2) (1,0) (2,0)
yes, because each input has exactly one output.
400
What is a function?
A relation that assigns exactly one input value to exactly one output.
400
Evaluate f(x)=25 + 4x if x=5
What is 45?
400
a. Is it a function?
b. Find f (-1)
a. Not a function!
b. f (-1) = 6, -2
400
a. Is it a function?
b. Find f(-2)
a. YES!
b. f(-2) = 9
400
Does this represent a function? Explain (-2,0) (-1,0) (-1,1) (0,1) (1,2) (2,2)
No, because the x value (-1) has more than one output.
500
What is the Vertical Line Test?
The test to tell if a graph is a function
500
Evaluate f(x)=-4x+(-2) if x=7
-30
500
a. Is it a function?
b. Find f(7)
a. Yes! Every input has exactly one output
b. f(7) = 1
500
a. Is it a function?
b. Find f(1)
a. Yes!
b. f(1) = 1
500
Which relation DOES NOT represents a function?
B) It is the only map where each does not have its own output.