Function vs. Not A Function
Function Notation
Evaluating Functions with Equations
Evaluating Functions with Graphs
100
State whether this is a function or not a function.
What is a function.
100
What does f(x) mean?
What is f of x.
100
Solve the following equation for f(2) , f(x) = x + 5
What is f(2)=7.
100
In the picture below, what is f(2)?
What is 3.
200
Is this a function or not a function?
What is not a function.
200
If you have two functions and you name one of them f(x), what could the other function be named?
What is g(x).
200
Solve the following equation when f(x)=6 , f(x)= 3x .
What is x=2.
200
In the picture below what is y=6?
What is x= -2 AND x= 8.
300
Is this a function or not a function?
What is a function.
300
Which variable is f(x) also known as? (Hint: There are usually two variables in an equation).
What is y.
300
Evaluate the following function for f(-3) ,
f(x) = 2x + 5 .
What is -1.
300
What is f(0)?
What is -1.
400
DOUBLE JEOPARDY: State whether this is a function or not a function. Explain.
What is not a function, because there are two inputs or x-values that are the same. We can never have two inputs that are the same for different outputs.
400
In any function there is an input and an output. In the function: f(x) = 2x + 5 , does x represent the input or output?
What is the input.
400
Evaluate the following function for f(x)=10 , f(x) = 2(x-3)+6
What is x=5.
400
Given this graph f(x) , what is f(x)=4
What is x=5. (5 is also acceptable as an answer).