Section 3.3 Graphs of Exponential Functions

Use a window with -5 ≤ x ≤ 5 and 0 ≤ y ≤ 70 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?

Let’s 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?

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