MT 122 Calculator Competencies

To successfully pass MT 109, you should be able to do the following on your TI-82 or TI-83 by the end of MT 122:

Evaluate expressions involving signed numbers, fractions, radicals, exponents, and parentheses accurately on the home screen.

Use QUIT, CLEAR, and DEL.

Use [(-)] and -- appropriately.

Adjust the contrast on the screen.

Graph linear functions on calculator including the origin, x-intercept, and y-intercept in the viewing window.

Plot points using the lists in STAT and statplot.

Use Y= for defining functions.

Use WINDOW to change the window settings.

Turn statplots on and off.

Trace on graphs and statplots and alternate between graphs when tracing.

Pause and restart graphing by pressing the ENTER key.

Other helpful calculator techniques you may learn this semester are:

How to interpret some error messages.

How to interpret numbers that are essentially zero like 3.24324E-27

How to evaluate functions on the calculator using the VARS key and the Y= list.

How to do short cuts like calling the previous answer or previous entry to the screen.

Use INS (2nd DEL) to insert characters.

Turn functions on and off.

If you plan to take STA 200 in the future, please purchase and learn how to use a TI-83. The TI-82 does not have statistics functions that are needed for that course.