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Page 56 © 2012 Texas Instruments Educaon Technology
• Open a new page.
• From the Graph Type menu choose –
b34.
• Set x to be and y to be .
• From the Window menu choose
and hide the entry line to gain a good
view of the data points including the horizontal axis.
• Now choose from the Graph Type menu -
b31.
• Enter f1(x)=x
2
.
• Now you can click and drag the quadrac curve
into place to t the data, just as you did earlier
for the straight line.
Go back to the each of the scaer plots on the
pages in turn. From the Analyze menu choose
Regression and place appropriate lines on the data.
The basic quadrac ready for ng…
… and dragged into place