The function notation means to substitute in 9 for x. Students can use the table on the TI-83/4 instead of ‘plugging in’ to x. Put the equation into Y= and then hit second graph which takes you to the table and there you see it!!

The function notation means to substitute in 9 for x. Students can use the table on the TI-83/4 instead of ‘plugging in’ to x. Put the equation into Y= and then hit second graph which takes you to the table and there you see it!!