And Interpret Step Functions

How much does it cost to rent the Karaoke machine for 3 days?

• $50
• $100
• $150
• $175

Using the pictured graph, what is f(-3)? 

• -3
• -1
• 1
• 3

 What is this type of function called?

• Discrete Function 
• Segment Function
• Step Function
• Jump Function

The vertical line test

• is used in geometry.

• Determines whether a relation is a function or not.

• Shows that step functions are not actually a function.

• Is an urban legend.

When evaluating a step function, and an input leads you to an open circle and a closed circle you should ....

• FREAK OUT!

• Use the output that has the open circle.

• Use the output that has the closed circle

• Use either output from the open or closed circle.

Step functions are mainly used.....

• When dealing with only integers on the y-axis

• When you want to be really really fancy

• When both the x and y variable are discrete.

• When both the x and y variable are continuous

Step functions are used when the x-axis is continuous, but the y-axis is _____________

• Confusing

• Exponential

• Linear

• Discrete

If a step function is drawn with two closed circles on top of each other, then ....

• You will get two answers so you just have to choose one.

• It is not a function because it does not pass the vertical line test.

• You could get two answers so the answer is halfway between them.

• You have to give the step function a vibe check

What is the equation of the RED piece (one on the RIGHT)?

• x - 1  if x > 3
• 3  if  x ≥ 3
• -1  if  x ≥ 3
• -1  if  x > 3

Using the pictured graph, what is f(1)?

• -3

• -1

• 1

• 3