If you don't see anything, adjust your window You can then highlight any of the options you would like. To graph the regression line with the data points, first make sure your stat plot.When this comes up on your home screen, press ENTER and it should say To do this, hit 2nd 0, and cursor down to select DiagnosticOn. If you don't have the r stuff, then you need to turn your diagnostics Your regression line is the equation now saved under Y1. The following should appear on your screen: LinReg(ax+b) L1, L2, Y1 or LinReg(ax+b) Y1 (if you are using L1 and L2 for your lists) You should now see the following on your home screen: Whichever function you would like) to specify where the regession equation will be saved. (REMEMBER THE COMMAS! You do not have to specify the lists if you are using L1 and L2 for your x and y-values, respectively.) Hit VARS, cursor right to Now press 2nd 1 ,Ģnd 2, to specify the x list and y list. To find the regression equation, first hit STAT, cursor right toĬALC and select option 4:LinReg(ax+b).Now just enter in your values one at a time by pressing ENTER after If you have anything in L1 or L2,Ĭursor up to the name of the list, hit CLEAR and ENTER. The intersection point will appear at the bottom of the screen.Use your right and left arrow keys to move to The calculator will then ask you to guess where the intersection point is.The cursor will blink on a function and show the function name in the The calculator will prompt you for the first and second curves you want to.Go to CALC which is found by pressing 2nd TRACE.Graph the two functions by entering the slope-intercept form of the.The reduced fraction for your value should appear if it is a rational number.įinding the Intersection Point of Two Lines Calculator Help-141 TI-83/84 Calculator Help in MATH 141 / 168 Finding an Exact Fractional Value of a Decimalįrom your home screen, if you have calculated a value which is not an integer value, you can determine whether or not it is a rational number and can be written as an exact fraction by hitting MATH and choosing option 1: Frac and then hitting ENTER.
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