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## Quadratic Formula Examples on TI-89-Video

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I’m going to use the calculator here for some quadratic formula examples and let’s get started you have to press second alpha to put the i n d e x letters in here to get to my menu and then press alpha to put the eight and the open and closed parenthesis and then press enter and you’re into my menu. As we go through trig and half angle sine integrating sine derivatives relative extrema is a graphing by hand but we want quadratic formula right now I give you a little demonstration of what it does in words of course you write this formula down on your paper. I’m going to do two examples two quadratic formula examples you have to press alpha before you put anything in the entry lines here we’re going to press alpha minus eight alpha nine and alpha seven and I’m going to say it’s ok. I give you a chance to change it always in my programs but I say it’s ok and we’re going to do the step by step answer right now and you mark all of this on your paper. If you have to do it step by step here’s the equation just like you would if you were doing it by hand and here’s the answer the exact answer is here and the approximate answer is here exact and approximate and we’re going to go put a couple of other variables in alpha minus sixteen alpha seven and alpha nine press ok. We’re going to do the quick answer here’s the variables put into this formula and the exact answer and approximate exact and approximate turns out to be one in this case so. Pretty neat huh? everystepcalculus.com. Go to my site buy my programs and pass calculus.

## Quadratic Formula Calculator for TI-89-Video

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This is a video from everystepcalculus.com demonstrating how my programs work on a TI -89 titanium calculator and other calculators in the t i system for physics and calculus problems. Let’s get started to access my menu you have to press second alpha to put the i n d e x in here and then you press alpha to put the eight and the open and closed parenthesis press enter and you’re into my menu. We’re going to go up with the cursor to go down to the bottom you’ve got u substitution trig and half angles quotient rule but we’re going to do quadratic formula right now. I give you some sort of definition there of it write the formula down on your paper right away and we’re going to enter our variables you have to press alpha before you enter anything into my entry lines here. Alpha minus seven alpha three and alpha four I show you what you’ve entered so you can change if you’ve made a mistake I say it’s ok and we’re going to do the quick answer here for calculus formula calculator which this is here’s the variables entered into the formula that you wrote before on your paper and here’s the answer exact answer exact answer and approximate answer pretty neat, huh? everystepcalculus.com go to my site. Buy my programs and pass calculus.

## Quadratic Equation Calculator | TI-89 App | Every Step Calculus Video

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This is a video from everystepcalculus.com, demonstrating how my programs work on a TI 89 titanium calculator and other calculators and TI system for physics and calculus problems and let’s get started to enter my menu you have to press second alpha Index in here Press alpha put an 8 open/close parenthesis press enter in your and my menu scroll up we get closer they’re all alphabetical my menu and I’m gonna go up to the quadratic formula press ENTER I give you a definition of it how it works you write this on in your paper right away and we enter our variables you have to press alpha before you enter any thing in these entry lines here. I’ll go alpha minus 17 and alpha six and alpha 7. I show you what you’ve entered you can change it if you made a mistake on all my programs I do that I say it’s okay quickly answer. Here’s a variable’s entered into the formula which you wrote in your paper before and here’s the answers exact answer approximate exact answer and approximate for X pretty neat. everystepcalculus.com go to my site by my programs and pass calculus.

## Quadratic Formula Problems Video

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This is a video from everystepcalculus.com. Demonstrating how my programs work on a ti89 titanium calculator and other calculators in the TI system for physics and calculus problems I’m going to show you how my programs tackle quadratic formula problems. Let’s get started you have to press second alpha to put i n d e x in here you have to press alpha to put the eight and the open closed parentheses press enter and you are into my menu ahh it’s all alphabetical this menu and all of these choices will help you pass calculus. I’m going to go up with the cursor to get down to the bottom to get to the q section and here’s the quadratic formula and we’re going to do some quadratic formula problems here. I always give you a definition of a problem if I can to help you a little bit about your knowledge of the problem you write this formula down on your paper right away and then we enter the variables you have to press alpha to enter anything into the entry lines of my program entry lines. I’m going to enter alpha minus nine for a going to alpha eight point three for b going to go alpha seven. I always show you what you’ve entered so you can change it in case you’ve made a mistake I say it’s ok. I’m going to do the step by step version on this one and show you how it does everything it adds the variables here and then it would just like you’d have to do the calculations as you go each screen you mark down the calculations just as you see them and here’s the exact answer and here’s the approximate exact and approximate of that answer pretty neat huh. everystepcalculus.com go to my site buy my programs and pass calculus.

## Quadratic Formula Worksheet-Video

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This is a video from everystepcalculus.com. Demonstrating how my programs work on a TI89 Titanium calculator and other calculators in the TI system for physics and calculus problems ok this video we’re going to us my programs like a quadratic formula worksheet and let’s get started to you have to press second alpha to put the i n d e x in here and then press alpha to put the eight and the open and closed parentheses and then press enter and you are into my menu I’m already at the quadratic formula here but you can see the choices ahh all up and down ahh with the cursor to pass calculus and do your homework so were going to go down to the quadratic formula to make it work like a quadratic formula worksheet and I give you the definition of the quadratic formula you always write this formula down first on your test or homework and were going to enter the variables you have to press alpha before you enter anything into these entry lines of my programs we’re going to go alpha minus six sixteen and then were going to due alpha maybe eight and then were going to do maybe minus six ahh I always show you what you’ve entered so you can change it in case you made a mistake. I’m going to say it’s ok here now this told me that the variables are wrong because it makes the negative under the discriminate so it becomes a non real answer so we have to change the variables so let’s go alpha minus sixteen alpha eight and alpha nine and we’re going to do the quick answer here shows you where you put the variables into that formula you marked down in your paper the variables in there and here’s the answer here’s the exact answer here’s the approximate answer exact and approximate. Pretty neat huh. EveryStepCalculus.com. Go to my site buy my programs or apps and pass calculus.

## Derive Quadratic Formula | TI89 Calculator App | EveryStepCalculus.com

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## Quadratic Formula Proof Video

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This is a video from everystepcalculus.com demonstrating how my programs work on a TI89 Titanium Calculator and other calculators in the TI system for physics and calculus problems. I’m going to show how my programs do a quadratic formula proof and let’s get started you have to press second alpha to put the i n d e x in here you press alpha to put the eight and the open and closed parentheses press enter and you’re into my menu you have many choices here so you can pass calculus and do your homework we’re going to scroll down to the q section here and see if we can’t find quadratic formula do the calculations on a quadratic formula proof I give you always a little definition of it so you know what you’re talking about with the quadratic formula and why you write this formula down on your paper or homework right away and you enter your variables you have to press alpha before you enter anything into my entry lines of my programs remember that so we’re going to do alpha minus six alpha minus five and alpha nine. I always show you what you’ve entered in case you made a mistake and we’re going to do the quick answer here well on the proof will do the full answer ah you enter the variables and write this on your paper here they’re entered into the formula and then you do the calculations just like you would if you were doing the calculations yourself write everything down you see go through each screen and you got the exact answer here the approximate answer exact answer and approximate answer for x pretty neat huh. EveryStepCalculus.com go to my site buy my programs and pass calculus.

## Quadratic Formula Video | TI89 Calculator App | EveryStepCalculus.com

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## Quadratic Equation

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Ok, this video is on the Quadratic formula, lets get started. Again we press

second and then alpha to enter letters and then my menu. Code is I n d e x

and then alpha eight and then closed parenthesis, then press enter. From here

you – You can scroll up if you want to go to the bottom of the menu – they are

all alphabetical – the menu items. And there we have the quadratic formula

there. First of all, I give you a little information on what it is, and why we use it.

Then I give you the formula, which you write on your paper – the first thing you

do, and now we’re going to add a, b, c of the variables. So let’s do alpha minus

sixteen, press the enter twice, and then you have to go alpha maybe seven, and

then alpha let’s try three. Shows what you entered so you can change it if you

want. I say it’s ok. And then after that, if you want the quick answer you scroll

to this one or press the number in front, one or two, or step by step. Let’s do

the quick answer right now, I’ll press one, shows what you write on your paper

there as you’re adding the variables, and then this is the exact answer and this is

the approximate answer. Exact answer for x, a minus point two six six and point

seven o four. Press enter and you can go back to the main menu, or you can

quit, or you can do a new quad problem. Let’s do another, ahh, let’s go alpha

minus eight , and nine, and alpha two. Now you’ll notice this didn’t get nine so

we need to change it. So I’ll press number two and go back and enter it again.

Let’s go alpha minus eight, alpha nine, and alpha seven, that’s better, say it’s

ok. I want the step by step answer this time, so we go through it and you write

everything you see on your paper here. And you can see here is the exact again

and here is the approximate answer for one x, and here is – you are doing minus

or plus ya know on this part of the discriminate, and here is the exact answer or

the approximate answer. Pretty neat huh? Everystepcalculus.com. Enjoy my

programs.