1.1 Change in Tandem

The set of input values of a function is called the ___________________, represented by the x variable.

• None of the above

• 2

• 6

• 8

• 10

• -2

• -1

• 1

• 2

True/False: If a function is concaves down it must ALWAYS increase.

• True

• False

Which of the following statements is true?

• If a function is increasing, then the rate of change is positive

• If a function is decreasing, then the rate of change is positive

• If a function is concaving up, then the rate of change is positive.

• If a function is concaving down, then the rate of change is postive.

• Where is the function increasing?

• Where is the function decreasing?

• Where is the function concaving up?

• Where is the function concaving down?

Which of the following questions is equivalent to asking, "When is the function decreasing?"

• When is the rate of change of the function negative?

• When is the rate of change of the function positive?

• When is the rate of change of the function increasing?

• When is the rate of change of the function decreasing?

• None of the above

If a graph is concaving up then which of the following statments is true?

• The rate of change is increasing.

• The function is decreasing.
• The rate of change is decreasing.

• The function is increasing.