Graphing Calculator Help - Recent questions and answers in TI-89 Graphing Calculators

Answered: f(x) = 4x5 − 240x3

Sun, 19 Nov 2023 06:58:35 +0000

First, your expression "4x5 - 240x3" makes no sense unless you're actually using exponents. If so, then the proper way to write it out in here and on your TI-89 is:
f(x) = 4*x^5 - 240*x^3

If that's the case then taking the first derivative of f(x) gives:

f'(x) = 20*x^4 - 720*x^2
If you factor that, you will find the local maxima and minima of the function at:
f'(x) = (20*x^2) * (x-6)*(x+6)
The zeroes of this function give us the local maxima and minima as (-6,20736), (0,0) (6,-20736)

To find the inflection points of f(x), take it's 2nd derivative and find the zeros of that function.
f''(x) = 80x^3 + 1440x
factor that into:
f''(x) = (80x)(x^2 - 18) = (80x)(x+sqrt(18))(x-sqrt(18))
So the inflection points occur at x = {-4.2, 0, 4.2}

Answered: y=(x)+1 for making a table of values for the equation

Sun, 19 Nov 2023 05:29:14 +0000

You want the TI-89 Manual "Chapter 15: Data/Matrix Editor". Look for the "seq(" command to generate a sequence of numbers and put them in a List.

Zero-product property

Mon, 02 May 2022 15:41:31 +0000

How to program

Can a TI 89 integrate indefinite integrals?

Mon, 20 Dec 2021 21:42:05 +0000

Answered: what are the factors of 57

Mon, 04 Jan 2021 16:12:06 +0000

1, 3, 19, 57

how to play multiplayer on ti-89 games

Sat, 05 Dec 2020 02:24:54 +0000

I downloaded space dimentia II game and I'm trying to play multiplayer with a friend. How do I do that? I see how to host but I'm not sure how he can join.

Can you show the source code please

Fri, 09 Oct 2020 20:32:19 +0000

Is 84 over -28 convergent or divergent

Mon, 05 Oct 2020 18:16:34 +0000

3^n+1^2 8^n An=_________________ 8^n(1-7^n)^2

Answered: How do i install custom software?

Mon, 04 May 2020 20:02:47 +0000

You can install custom software, but you need the mini-USB cable (cheap on Amazon). Software (APPS) are coded in assembly and cannot be typed manually on the calculator.

when i plug the calculator into the computer i cannot seem to find where it is connected.

Thu, 16 Jan 2020 22:23:32 +0000

downloading games

Are there any calculators that can draw venn diagrams and perform set operations?

Mon, 16 Jul 2018 20:04:23 +0000

I'm looking for a calculator or calculator program (any brand or model); something suitable for basic set operations (Union, Intersection, Complement, possibly including Functions & Relations), and drawing venn diagrams, etc. i.e: A∪B∩C' and so on.

Can I load Ti-89 programs to a Ti-84 plus then transfer them to the Ti-89?

Sat, 17 Jan 2015 05:33:21 +0000

I have a T1-89 without a usb and a TI-84 plus silver with usb port. Can I load Ti-89 programs to the Ti84 then transfer them to the Ti-89?

f(x)=11 x^3 -10 x

Mon, 03 Nov 2014 15:11:37 +0000

difference quotient

cos(1÷2+π) equals

Thu, 02 Oct 2014 12:54:55 +0000

sketch the angle for 7pi/3 and find its reference angle.

Wed, 17 Sep 2014 01:52:56 +0000

I'm having trouble installing advance wars for my ti-89

Thu, 05 Jun 2014 22:28:13 +0000

I don't know what to do at ALL! A step-by-step guide would be appreciated.

how do i use this program after ive put it in my calculator

Fri, 14 Sep 2012 00:09:23 +0000

how do i use this program after ive put it in my calculator

Fri, 14 Sep 2012 00:08:53 +0000

Answered: hhhh888888888

Mon, 25 Jun 2012 11:41:44 +0000

njjjjjjjjghgggggg

the directional derivative in the same direction as <12, -5> but with length 10

Wed, 11 Apr 2012 18:24:20 +0000

Answered: How do you connect a TI-89 (Not Titanium) to your computer?

Mon, 26 Mar 2012 18:21:39 +0000

You need a special TI Connect cord. It has USB on one end and the other end fits into the TI-89. You can buy them for around $15 or so.

Answered: how do you install this game on a vitual TI-89?

Mon, 26 Mar 2012 18:16:04 +0000

Which game are you trying to install?

Answered: how to enter sq. rt. 1 + (f(x)^2

Sun, 18 Mar 2012 19:25:44 +0000

I need to find the arc length of a problem in the calculator ( not by hand) I need to know how to enter this in the calculator with derivatives and integrals with step by step instructions. How do we put an integral arc length from a to b in the TI-89 calculator?

What is the extrema of x^3-48*x?

Thu, 15 Mar 2012 00:22:43 +0000

(3x)=(y^2+18)/(3) 2 < x < 6 y >0

Thu, 08 Mar 2012 04:23:13 +0000

y = 18 - x2, y = x2, x = 0

Sat, 18 Feb 2012 05:26:33 +0000

Every time I try to use the area program, it says syntax error, even though I close the parenthesis. What's wrong?

Thu, 19 Jan 2012 02:22:42 +0000

Answered: (c-x-y)*(c-x-y)

Wed, 18 Jan 2012 18:25:22 +0000

(c-x-y)*(c-x-y)

What does "Calc LH rects? (1=y):" mean in the Reimman program?

Fri, 16 Dec 2011 19:02:07 +0000

I don't know what to type in the blank for this question in order for the program to calculate the area.

(x^2+10x+25/2x^2+10x)/(8x+40/40x^3)

Fri, 11 Nov 2011 23:41:59 +0000

Converting to Slope-Intercept Form and Graphing

Wed, 09 Nov 2011 00:42:01 +0000

how do i write this equation in a slope intercept form ? y+9=-2/3?