Lesson 3.6 (Continued) Graphing Exponential Functions 1 3.4.2: Graphing Exponential Functions.

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Transcript of Lesson 3.6 (Continued) Graphing Exponential Functions 1 3.4.2: Graphing Exponential Functions.
Lesson 3.6 (Continued) Graphing Exponential Functions : Graphing Exponential Functions 2 Initial value Horizontal Asymptote : Graphing Exponential Functions Guided Practice Example 1 Create a table of values for the exponential function f(x) = 1(3) x 2. Identify the asymptote and yintercept of the function. Plot the points and sketch the graph of the function, and describe the end behavior : Graphing Exponential Functions Guided Practice: Example 1, continued 1.Create a table of values. Choose values of x and solve for the corresponding values of f(x) : Graphing Exponential Functions xf(x)f(x) Guided Practice: Example 1, continued 2.Identify the asymptote of the function. The asymptote of the function is always the constant, k. In the function f(x) = 1(3) x 2, the value of k is 2. The asymptote of the function is y = ____ : Graphing Exponential Functions Guided Practice: Example 1, continued 3.Determine the yintercept of the function. The yintercept of the function is the value of f(x) when x is equal to 0. It can be seen in the table that when x = 0, f(x) = 3. The yintercept is (0, ____) : Graphing Exponential Functions Guided Practice: Example 1, continued 4.Graph the function. Use the table of values to create a graph of the function : Graphing Exponential Functions Guided Practice: Example 1, continued 5.Describe the end behavior of the graph. As x +, y ____ As x , y ____ : Graphing Exponential Functions Guided Practice Example 2 Create a table of values for the exponential function. Identify the asymptote and yintercept of the function. Plot the points and sketch the graph of the function, and describe the end behavior : Graphing Exponential Functions Guided Practice: Example 2, continued 1.Create a table of values. Choose values of x and solve for the corresponding values of f(x) : Graphing Exponential Functions xf(x)f(x) 2 Guided Practice: Example 2, continued 2.Identify the asymptote of the function. The asymptote of the function is always the constant, k. In the function, the value of k is 3. The asymptote of the function is y = ____ : Graphing Exponential Functions Guided Practice: Example 2, continued 3.Determine the yintercept of the function. The yintercept of the function is the value of f(x) when x is equal to 0. It can be seen in the table that when x = 0, f(x) = 7. The yintercept is (0, ____) : Graphing Exponential Functions Guided Practice: Example 2, continued 4.Graph the function. Use the table of values to create a graph of the function : Graphing Exponential Functions Guided Practice: Example 2, continued 5.Describe the end behavior of the graph. As x +, y ____ As x , y ____ : Graphing Exponential Functions Guided Practice Example 3 Create a table of values for the exponential function f(x) = 1(2) x 3. Identify the asymptote and yintercept of the function. Plot the points and sketch the graph of the function, and describe the end behavior : Graphing Exponential Functions Guided Practice: Example 3, continued 1.Create a table of values. Choose values of x and solve for the corresponding values of f(x) : Graphing Exponential Functions xf(x)f(x) Guided Practice: Example 3 continued 2.Identify the asymptote of the function. The asymptote of the function is always the constant, k. In the function f(x) = 1(2) x 3, the value of k is 3. The asymptote of the function is y = ____ : Graphing Exponential Functions Guided Practice: Example 3, continued 3.Determine the yintercept of the function. The yintercept of the function is the value of f(x) when x is equal to 0. It can be seen in the table that when x = 0, f(x) = 4. The yintercept is (0, ___) : Graphing Exponential Functions Guided Practice: Example 3, continued 4.Graph the function. Use the table of values to create a graph of the function : Graphing Exponential Functions Guided Practice: Example 3, continued 5.Describe the end behavior of the graph. As x +, y ____ As x , y ____ : Graphing Exponential Functions Your turn Asymptote: yintercept: Domain: Range: End behavior: Asymptote: yintercept: Domain: Range: End behavior: