To find the zeros of a function, you  are looking for the  points of intersection of the graph of the function and the x-axis  

First enter the
function into the y editor
Set the window
to show the graph
Graph Presss 2nd CALC 2
When asked for the
left bound, move the
cursor left of the zero,
then press ENTER
When asked for the  
right bound, move the
cursor right of the zero,
then press ENTER
When asked for a guess,
move the
cursor close to the zero,
then press ENTER
The calculator
will find the zero

Note: For those with a TI 82,  The calculator finds the ROOTS not ZERO, and where it askes for a left bound or right bound, the TI82 asks for a lower bound or upper bound.

© JoanBookbinder 1998