Question 571697
h= -2t^2. I need to find the value for h and t, and than plot the relaitons over the range of -3 to 3, not sure how to do this.
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Pick values for t between zero and 3.  Notice that h is the same for neg and positive values of t.
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Plot the points.  Do as many as you like.
Draw a smooth curve thru the points.
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You can use Excel to generate a table of points, too, and Excel will draw the curve.