Section 3.3 Graphs of Exponential Functions

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Section 3.3Graphs of Exponential Functions
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• In your groups graph the following exponential
  functions on the same screen
• Use a window with -5 x 5 and 0 y 70
• What do you notice about the graphs
• What are there y-intercepts?
• Are they decreasing or increasing?
• Are they concave up or concave down?
• What are their domains and ranges?

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• Lets look at the following graphs
• What is going on with these graphs?
• What can you say about their y-intercepts?
• What can you say about the rate they are
  increasing?

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• Consider the following table
• How can we determine if this data can be
  represented by an exponential function?
• Test for a constant ratio
• How can we find a function for this situation?
• For what value of t does h(t) 2000?
• In your groups work on problems 6, 15, and 21

t 9 12 15 18 21
h(t) 120 216 389 700 1260