Hi, Previously Posted

f(x) = 13.39x^2 + 0.28x - 0.08 

Rounding to one decimal point.

f(.2) =.5

f(.4) = 2.2

f(.6) = 4.9

f(.8) = 8.7

f(1) = 13.6

 

Answer by AnlytcPhil(1806)   (Show Source): You can put this solution on YOUR website!
 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

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
 

RELATED QUESTIONS

Find a regression model for the following data.  State the model and determine the... (answered by CPhill)

Original data	Line of "best guess"	Line of best fit
Mph greater than speed limit	Number... (answered by ikleyn)


Use a graphing calculator to find the equation of the curve of best fit for the data. 
 (answered by ewatrrr)

Use the line of best fit for the set of data below to approximate the value of y when x =  (answered by venugopalramana)

Use the line of best fit for the set of data below to approximate the value of y when x =  (answered by checkley71)

Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars... (answered by CPhill)

Use your calculator to find an equation in the form f(x)=ax^2+bx+c to fit the values... (answered by josgarithmetic)

Find the correlation coefficient for the line of best fit of the set of data below. Round  (answered by venugopalramana)

analyze and provide a report. You may use more than one set of data of the... (answered by ikleyn)