Vocabulary
The set of all x-values
Find the domain {(-3,2),(-2,4),(-1,2),(5,4)}
D:{-3,-2,-1,5}
Is the following relation a function? {(-3,2),(-2,4),(-1,2),(5,4)}
What is yes?
Evaluate f(5) if f(x)=x+3.
What is F(5)=8?
If f(x)=x+4 and g(x)=3x evaluate f(5)+g(2).
What is 15?
The set of all y-values
What is the range.
Find the range. {(-1,5),(2,3),(4,2),(10,2)}
R:{2,3,5}
Evaluate f(3) if f(x)=2x.
What is f(3)=6?
If f(x)=2x+4 and g(x)=x-4 evaluate f(4)–g(-1).
What is 17?
Used to determine a function on a graph.
What is the vertical line test.
Find the domain. {(-1,5),(2,3),(4,2),(-1,2)}
D:{-1,2,4}
Evaluate h(-1) if h(x)=5x+3.
What is h(-1)=-2?
If f(x)=5x-3 and g(x)=x^2 evaluate f(3)•g(4).
What is 192?
Each input has exactly one output.
What is a function.
Find the range. {(-3,4),(0,10),(11,8),(4,5)}
R:{4,5,8,10}
Is the following relation a function? Graph on board.
What is yes.
Evaluate f(-3) if f(x)=x^2.
What is f(-3)=9?
If f(x)=x+2 and g(x)=9/x evaluate f(g(3)).
What is 5?
Input, domain, x-values.
What is the independently variable.
Find the domain and range. {(-5,8),(-5,4),(6,9),(3,10)}
D:{-5,3,6} R:{4,8,9,10}
Is the following relation a function? Graph on board.
What is no
Evaluate g(-4) if g(x)=|x|+3.
What is g(-4)=7?
If f(x)=x^2+1 and g(x)=x-4 evaluate g(f(-2)).
What is 1?