Question

how do you find the derivative of a function at a specific point using a graphing calculator?

Answer 1

that depends on what calculator you have

Answer 2

oh wow i just looked at my calculator i didn't know you could do that lol

Answer 3

for a ti83/84 use ...
nderiv(f(x),x,a)

Answer 4

you don't have to teach now; just show the buttons

Answer 5

gives f'(a)

Answer 6

right

Answer 7

Any graphing calc, it really doesn't matter.

Answer 8

well i graphed it when to calc and seen dy/dx
and figure that would be the way to go if i wanted to evaluate f' at such and such

Answer 9

Zarkon, I'm confused, what did you post?

Answer 10

went to calc*

Answer 11

for ti83

Answer 12

the command for an 83/84 is nDeriv(

Answer 13

how do you type in commands

Answer 14

it is under the math button

Answer 15

i see the word matrix
x^{-1}
x^2
don't see how i can type a command in

Answer 16

you have a 83 or 83+?

Answer 17

plus

Answer 18

minus would be better
i want the ti83 minus

Answer 19

you should have a 'MATH' button

Answer 20

oh wait i'm sorry i got it zarkon

Answer 21

you can also go to graph enter function go to calc and go to dy/dx

Answer 22

you can...but I think the point you want to take the derivative at has to be on the screen

Answer 23

oh so you have to play with window if the point is outside the window

Answer 24

yes

Answer 25

it gives an error if you put in a value that is outside the window

Answer 26

ok one day i will know my way around a calculator