To graph an exponential function on a TI-84 Plus: 1. Press `Y=`. 2. Enter the function, e.g., `Y1 = a * b^X`. 3. Adjust the window settings with `Window`. 4. Graph with `Graph` and analyze using arrow keys and `Trace`.
Graphing exponential functions on a TI-84 Plus calculator involves entering the function into the calculator and adjusting the viewing window if necessary. Here are the steps:
1. Access the "Y=" Menu:
- Press the `Y=` key to access the "Y=" menu.
2. Enter the Exponential Function:
- Clear any existing functions by highlighting them and pressing `Clear`.
- Enter your exponential function using the variables `X` and `Y`.
- For example, if your function is y = a × b^x, you can enter it as `Y1 = a * b^X`, where `a` and `b` are your specific coefficients.
3. Adjust the Window:
- Press the `Window` key to set the viewing window. Exponential functions may grow or decay rapidly, so you might need to adjust the window settings.
- Set appropriate values for `Xmin`, `Xmax`, `Ymin`, and `Ymax` based on the domain and range of your function. Start with a wide range and narrow it down if needed.
4. Graph the Function:
- Press the `Graph` key to plot the function on the graph.
5. View and Analyze the Graph:
- Use the arrow keys to navigate and zoom in/out if necessary.
- Press `Trace` to evaluate the function at specific x-values.
- Press `2nd` + `Graph` (Table) to see a table of function values.