Question about Texas Instruments TI-84 Plus Calculator
When you have a problem like that ex: 5-x^2 = x -9, how do you know what to set the ymin, ymax at in order to get ur answers to solve
Posted on Jan 29, 2010
To enter xmin, xmax, xscl, ymin, ymax, yscal values, press the widow button found below the screen. It is the button right by the y= button.
Posted on Oct 03, 2009
Xmin must be less than Xmax; Ymin must be less than Ymax. If your X variable takes only positive values you can set Xmin=0; if you want to graph y=X^2, you know that all y-values are going to be positive, so there is no need to waste screen real estate by putting Ymin negative.
It is like taking a picture with a camera. You point the viwefinder where the action is.
My suggestion is to set the default values Xmin=-10, Xmax=10, Ymin=-10, Ymax=10. Then look at the graph and locate the part that interests you more and focus on it by zooming in. Your knowledge of the general behavior of the function will help you determine what is worth looking at.
Hope it helps.
Posted on Sep 30, 2009
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Posted on Jan 02, 2017
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