Question 629598
Use a graphing calculator to find the equation of the curve of best fit for the data. 

time     (x)   0.2   0.4   0.6   0.8   1.0
distance (y)   0.5   2.2   4.9   8.7  13.6
<pre>
On your TI-84,

press STAT
press 1

enter the x values in L1
enter the y values in L2

press STAT
press right arrow to highlight CALC
press 5

  see
          QuadReg
      Xlist:L1
      Ylist:L2
      FreqList:
      Store RegEQ:
      Calculate

Scroll down to Calculate

press ENTER

  see
          QuadReg
      y=ax²+bx+c
      a=13.39285714
      b=.2785714286
      c=-.08
      R²=.9999896992

Choice a. y = 13.39x^2 + 0.28x - 0.08

Edwin</pre>