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Calculator Tips for Pre-Calculus
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Turning "Diagnostic On"

The following instructions apply to a TI83 or TI84 graphing calculator.

Key strokes:
  1. "2nd"
  2. '0' (catalog)
  3. "x-1"
  4. Arrow down to "DiagnosticOn"
  5. Hit enter twice. You should see the following on your screen.



    The diagnostic is now on. Once on, it stays on unless you reset the calculator. If this is the case, then you will have to go back and turn the diagnostic back on.
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