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" positive
onedigit (for ease) integer value and store the
value in x (do not pick 0 or 1).
To store a 7: 7
STO (key) x
 Hit ENTER.
 Enter the algebraic expression
from
the problem on the home screen using x as your
variable.
 Set this expression "=" to the
each of the multiple choice answers.
The "=" sign is under 2nd TEST
(MATH) #1 =.
 Hit ENTER.
 If a 0 appears, this is NOT the correct answer.
If a 1 appears, this IS
the correct answer.

 The "recall entry" feature of the
calculator can be used to speed up data entry.
(2nd ENTER)



