how do I work a exponential and logarithmic function on a TI83?

To work with exponential and logarithmic functions on a TI-83 calculator, follow these steps:

1. Turn on your TI-83 calculator. Press the "ON" button.
2. Enter the function you want to work with. For example, let's use the exponential function y = 3 * 2^x.
a. Press the "Y=" button to access the function editor.
b. Clear any existing functions by pressing the "CLEAR" button.
c. Enter your function using the variables "X" and "Y". In this case, enter "Y1 = 3 * 2^X".
d. Press the "GRAPH" button to see the graph of your exponential function.

3. To find specific values or points on the graph, you can use the "TABLE" feature.
a. Press the "2nd" button followed by the "GRAPH" button to access the "TABLE" feature.
b. The calculator will display a table showing X and Y values for your function.

4. For logarithmic functions, let's use the example y = log(base 2) x.
a. Enter your logarithmic function into the function editor. For example, enter "Y2 = log(X) / log(2)".
b. Press the "GRAPH" button to see the graph of your logarithmic function.
c. Use the "TABLE" feature if you want to find specific values or points on the graph.

By following these steps, you can work with exponential and logarithmic functions on your TI-83 calculator, graph them, and find specific values or points.