# I can't graph exponential functions on my Casio FX-9750GII.

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Posted on Jan 02, 2017

SOURCE: how to grahic

To draw graphs.

1. Turn calculator ON (isn't that obvious?)
2. If you see no icons, press [MENU]
3. Use arrow to move focus on GRAPH and press [EXE]
4. By default, the graph type is Y=
5. Enter your equation on line Y1=, use the [X,theta,T] key to enter the X-variable
6. Press [EXE] when finished entering a function.
7. Enter other functions if you want.
8. When done, press [F6:Draw].
9. If you do not see a big portion of the curve you can press [SHIFT] [F2:Zoom] and select [F5:Auto]
I am enclosing screen captures. The screens you see may not look exactly as on the FX-9750G, but all menu commands you have to execute are accessed by the same key sequences.

This last one is obtained with the Zoom: Auto

Posted on Mar 29, 2010

SOURCE: i do not know how

Hey it is. Okay, so start with a equation: say, y = -(1 |x|). Now type y = -(1 , then press the [OPTN] button, next to the shift. Next press the [NUM] button or F5. The first menu button should be Abs or absolute value. When your done it should look like this. y = -(1 Abs (x)) then graph it.

Posted on Aug 30, 2010

SOURCE: Can I factor a polynomial

The short story is that this calculator does have a computer algebra system or CAS and thus cannot factor polynomials with arbitrary (unknown) coefficients or known coefficients.
However if the coefficients are given you can ,if you are willing to travel that way, factor approximately a polynomial P(x).
Basically, the idea is that any polynomial P(X) of degree n can be written in the factored form (X-x_1)(X-x_2)...(X-x_n), where x_1, x_2, x_3,...x_n are the roots (real or complex) of the equation P(X)=0.

The procedure ( for a 3rd degree polynomial) is as follows: (the fixYa site parser will remove the plus signs, so I am writing the whole word plus instead of the mathematical sign
If you want to factor a cubic polynomial P3(X) = aX^3 plus bX^2 plus cX plus d , you write the corresponding cubic equation as aX^3 plus bX^2 plus cX plus d =0 , then you divide all terms of the equation by a to obtain

X^3 plus (b/a)X^2 plus (c/a)X plus (d/a)=0.

You use the calculator to solve (approximately) this equation.
Suppose you find the 3 roots X1,X2,and X3. Then the polynomial X^3 plus (b/a)X^2 plus (c/a)X plus (d/a) can be cast in the factored form (X-X1)(X-X2)(X-X3) and the original polynomial P3(X) can be written as

P3(X) = a*(X-X1)(X-X2)(X-X3)

You can handle the quadratic polynomial the same way.
P2(X) =a*(X-X1)(X-X2) where X1, X2 are the two real roots.

To find the various roots you must use the solve( application.

Posted on Nov 14, 2010

SOURCE: on the casio fx-9750GII, how

The Matrix application share the same icon as the RUN. When you select the RUN/MAT icon you see a possibly blank screen at the bottom of which there is a TAB called >MAT. Press F1 and all available matrix tools will appear.

Posted on Jan 16, 2011

SOURCE: I have a Casio fx-9750GII,

From the Run Mode (select it and press exe), enter Setup (Shift Menu) and then highlight Angle. Press the function key that correponds to Deg and then press Exit.

The manual for the Casio Fx-9750GII is here: http://support.casio.com/manualfile.php?rgn=1&cid=004002013 . Other calculator manuals are here: http://support.casio.com/manuallist.php?rgn=1&cid=004 .

I hope this helps.

Cindy Wells

Posted on Jan 19, 2011

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## Related Questions:

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Your function is not correctly defined. If graph is function y=f(x), variable must be x; if graph is polar, variable must be theta, and if graph is parametric, variable must be t. This does not cover all possible cases. Check the graph type and the definition of the function.

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### I do not know what a range is and where to find it on a Casio FX 9750GII Calculator

In statistics, the range of 1-var a data set is the difference between the largest value and the smallest. R=Xmax-Xmin
In functions: the range of a function is the interval (or the Union of intervals) of the real line where the dependent variable takes it values.
Ex: sin(x). Whatever the value of the independent variable x, the values of the function sin(x) are in the closed interval [-1,1]. The range of the functions sin(x), and cos(x) is [-1,1].
No use of a calculator for finding the range of functions.

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If the table contains experimental (statistical) data that you gathered and put in a table on the calculator, then I am sorry to say that if table is deleted there is no way to get the data back. You will have to renter it.
However if it is a table connected to a function you graphed then the table can be regenerated: Type in the function anew, press the table function key, then graph it.

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### How do I graph sinx on my Casio fx-9750GII calculator?

Turn calculator ON
If you see no icons, press Menu
Press 3 (Graph) draw your function. (more on that later).
If the first line of the display show Graph Func : Y= you should be able to draw your function.
If it says anything else, press F3 TYPE to select the graph type and select functional by pressing F1 key Y=.
After the graph type is set to Y=, type the second member of your function y= f(x) on the first line. Make sure the = sign after Y1= remains highlighted after you move cursor. Otherwise select the function by pressing F1:SEL. Press F6 Draw.
Be careful with trigonometric functions. If angle unit is radian, set window Zoom to standard. If angle unit is degree, you must open the Window utility and set Xmin=-190, Xmax = 190 to see at least a period.

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### Where is the math button on the casio fx-9750G11

It is a calculator and prqactically every button is a MATH button. It depends on what MATH you intend to do. Put the calculator in Run/Mat screen then press the OPTN key. You will see several tabs. Press the function key under a TAB and explore what is offered. Go through all the keys (F6 also) and see what the new tabs do.
In general it is most helpful to read the manual that shipped with the calculator.

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### How do i graph piecewise functions on the fx-9750GII

You must graph each part as a whole function and just pay attention to the one section in the bounds that it is active for. There is no way to only graph part of a function.

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### How do i use the fx-300es to graph

Sorry but you cannot do that. This is not a graphing calculator. However you can generate a table of values for your function (MODE TABLE) and use it to graph the curve by hand (pencil and paper).

If you need a Casio graphing calculator, one of the cheaper ones is the Casio FX-9750GII. Equivalent Texas Instruments calculators are the TI83PLUS/TI84PLUS.

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### How to grahic using casio fx-9750GII

To draw graphs.
1. Turn calculator ON (isn't that obvious?)
2. If you see no icons, press [MENU]
3. Use arrow to move focus on GRAPH and press [EXE]
4. By default, the graph type is Y=
5. Enter your equation on line Y1=, use the [X,theta,T] key to enter the X-variable
6. Press [EXE] when finished entering a function.
7. Enter other functions if you want.
8. When done, press [F6:Draw].
9. If you do not see a big portion of the curve you can press [SHIFT] [F2:Zoom] and select [F5:Auto]
I am enclosing screen captures. The screens you see may not look exactly as on the FX-9750G, but all menu commands you have to execute are accessed by the same key sequences.

This last one is obtained with the Zoom: Auto

Mar 09, 2010 | Casio FX-9750GPlus Calculator

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