Problem:
Using the TI-85 graphing calculator, graph the following functions

Visualization:


[Press here to see animation again!]

  1. If you are not familiar with the graphing of functions on the TI-85, then first read the Initial Setup page from Little's Basic Guide to the TI-85.
  2. Press the GRAPH key and then pick y(x)= by pressing the F1 key.
  3. If necessary, keep pressing the F4 key until only y1= appears on the screen.
  4. At the prompt y1=, type in

    (4/7)^x

    and press the ENTER key.

  5. At the prompt y2=, type in

    (ln x)/(ln (4/7))

    and press the ENTER key.

  6. The range settings for the graph above is  [-3, 3] × [-3, 3]:

  7. Pick GRAPH from the menu by pressing the F5.