How do I set properly the window settings on a ti84 for polynomials. How can I know what settings to put just by looking at the function , say x^5+3x^4-2x^3+10

Question

jim_thompson5910 · Answer

you could try zoom fit and see if the calculator can't figure out the proper window on its own

anonymous · Answer

It doesn't

anonymous · Answer

don't  know what y min or ymax or x man or min scales to use

jim_thompson5910 · Answer

try 

xmin = -10
xmax = 10
ymin = -40
ymax = 120

anonymous · Answer

I don't want the answer I want to know how  and why to use that setting??/??

jim_thompson5910 · Answer

well I started off with the standard -10, 10 for both

then I stretched out the y interval and kept the x-interval the same

jim_thompson5910 · Answer

it was just trial and error really

anonymous · Answer

plus those swttings wouldn't work  I tried and I can not see the extremas.

jim_thompson5910 · Answer

I can see the extremas

this is what I get

jim_thompson5910 · Answer

and that's using the window of 

xmin = -10 
xmax = 10 
ymin = -40 
ymax = 120