Function Notation (graphs and outputs)

Function Notation (graphs and outputs)

Poll

What is f(-2)?

• -1

• 0

• 1

• 2

How can we find f(-2)?

• Where does the line cross at x coordinate at -2?

• At the x coordinate -2, what is your y coordinate?

Poll

What is your domain for f(x)=9?

• -2

• -1

• 0

• 1

What is the domain for f(x)=9

Now we have to find the y coordinate 9. What will be your x coordinate if your y=9 or f(x)=9?

Poll

What is your input for f(x)=x+3 when f(x)=8?

• -1

• 1

• 5

• -5

What is your input for f(x)=x+3 when f(x)=8?

What value when we have f(x)= ( ) +3 would give me f(x)=8

when we use f(5)= (5)+3 we get f(5)=8!!!