Question

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

Answer 1

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

Answer 2

It doesn't

Answer 3

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

Answer 4

try

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

Answer 5

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

Answer 6

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

Answer 7

it was just trial and error really

Answer 8

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

Answer 9

I can see the extremas

this is what I get

Answer 10

and that's using the window of

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