Increasing/Decreasing/Constant Functions

Unit 1 ​Notes:

​Increasing,

Decreasing, and

Constant Functions

​

Multiple Select

Which interval is the function increasing on?

Select all that apply.

• $$\left(-\infty,\infty\right)$$  

• $$\left(-\infty,-1\right)$$  

• $$\left(1,\infty\right)$$  

• $$\left(-1,1\right)$$  

Multiple Select

Which interval is the function decreasing on?

Select all that apply.

• $$\left(-\infty,\infty\right)$$  

• $$\left(-\infty,-1\right)$$  

• $$\left(1,\infty\right)$$  

• $$\left(-1,1\right)$$  

Multiple Choice

Which open interval is the function constant?

• $$\left(-\infty,0\right)$$  

• $$\left(0,2\right)$$  

• $$\left(2,\infty\right)$$  

Multiple Choice

Which open interval is the function decreasing?

• $$\left(-\infty,0\right)$$  

• $$\left(0,2\right)$$  

• $$\left(2,\infty\right)$$  

Multiple Choice

Which open interval is the function increasing?

• $$\left(-\infty,0\right)$$  

• $$\left(0,2\right)$$  

• $$\left(2,\infty\right)$$  

Multiple Choice

Determine the open intervals in which the function increases

• It always increases on it's domain,

  because the function's always increasing.

• it increases

  on:

  $$\left(-\infty,-1\right)\ and\ \left(1,\infty\right)$$  

• You cannot determine from the graph and function

​Delta Math Example

​Increasing vs. Positive Graphically

​How to answer.

Multiple Choice

Which is true about the function 

in the interval: (a,b)

• Positive and Increasing

• Positive and Decreasing

• Negative and Increasing

• Negative and Decreasing

Multiple Choice

Which is true about the function 

in the interval: $$\left(-\infty,a\right)$$  

• Positive and Increasing

• Positive and Decreasing

• Negative and Increasing

• Negative and Decreasing

Open Ended

Riddle: 

I am an odd number. Take away one letter, and I become even.

What number am I?

Poll

How did you do on the quiz?

• Perfect score for sure

• Missed a few

• I think I needed to review a whole week.

• Don't even wanna know.