First Variable Second Variable This is the first point used for your function This is the second point used for your function This is the point used to test your function m= b= #DIV/0! #DIV/0! #DIV/0! THIS IS YOUR FUNCTION #DIV/0! THIS IS YOUR FUNCTION EVALUATED AT YOUR THIRD VALUE OF X #DIV/0! THIS IS THE DIFFERENCE BETWEEN THE Y VALUES Graph 12 10 8 6 4 2 0 0 2 4 6 8 10 12