Equation Checks
for Multiple Choice Questions
The graphing calculator allows for
several methods of checking or comparing multiple choice answers.
Let's look at the checking of algebraic problems by forming equations.
Process:
- Choose your "favorite" non-integer number (a decimal value) and store the
value in x
(keep the number simple).
To store 7.2: 7.2
sto x (sto command is above  key)
- Hit
 .
- Enter the algebraic expression
from
the problem on the calculator screen using x as your
variable (or any letter from the keyboard that the problem may be using).
- Set this expression "=" to
each of the multiple choice answers.
The "=" sign is the  key.
- Hit ENTER.
- If a false appears, this is NOT the correct answer.
If a true appears, this IS
the correct answer.
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