Vocabulary
Domain & Range
Is it a function?
Evaluate Functions
Function Notation
100
Define domain.
What is 1st coordinate (x, )?
100
Find the domain and range. {(-3,2),(-2,4),(-1,2),(5,4)}
D:{-3,-2,-1,5} R:{2,4}
100
Is the following relation a function? {(-3,2),(-2,4),(-1,2),(5,4)}
What is yes?
100
f(x)= x+3
Find f(5)
What is 8?
100
Write the equation using function notation.
y=3x-5
What is
f(x)=3x-5
200
Define Range
What is 2nd coordinate ( ,y)?
200
Find the domain and range. {(-1,5),(2,3),(4,2),(10,2)}
D:{-1,2,4,10} R:{2,3,5}
200
Is the following relation a function? {(-1,5),(2,3),(4,2),(10,2)}
What is yes?
200
f(x)=2x
Find
f(-3)
What is -6?
200
Elements of the domain
What is x?
300
Define vertical line test.
What is used to determine a function on a graph?
300
Find the domain and range. {(-1,5),(2,3),(4,2),(-1,2)}
D:{-1,2,4} R:{2,3,5}
300
Is the following relation a function? {(-1,5),(2,3),(4,2),(-1,2)}
What is no?
300
f(x)=5x+3
Find f(x)=-1
What is y=-2?
300
How do you read f(x)?
What is f of x
400
Define function.
What is a set of ordered pairs, x-value always different?
400
Find the domain and range. {(-3,4),(0,10),(11,8),(4,5)}
D:{-3,0,4,11} R:{4,5,8,10}
400
Is the following relation a function? If not state why.
What is not a function? Fails vertical line test, since the 2's repeat.
400
Find f(-3)
f(x)=x^2
What is f(-3)=9?
400
The cost of printing pictures is given by the equation:
y=.25x
Rewrite in function notation.
What is
f(x)=.25x
500
Define independent variable.
What is input, domain, x-value?
500
Find the domain and range. {(-5,8),(-5,4),(6,9),(3,10)}
D:{-5,3,6} R:{4,8,9,10}
500
Is the following relation a function? If not state why.
What is yes it is a function
500
f(x)=x^2+2x
Find f(-4)
What is f(-4)=8?
500
The cost of printing pictures is given by equation
y=.25x
Find
f(10)
What is 2.5