Need help on finishing up on plotting my slope

here are the measurements

x = X, + vit+= at sloop stamnixongigs ordi sluol(23) 2 Experiment 3 - Testing the kinematic relation You can test the above equation by taking data, plotting it, and using a best-fit line to find the slope.\f1) Set the photogate to PULSE mode. If the timer has a resolution switch (just above the reset button), be sure to set the resolution to 1 ms; otherwise the counter will overflow. 2) Release the glider a known distance x above the photogate, as you did in the previ- ous experiment. At the instant you release the glider, simultaneously start the pho- togate timer by hand using the START/STOP button. The timer will then record the elapsed time between the start pulse and the moment that the flag interrupts the timer beam. 3) Repeat this measurement for five or six starting points. If the glider starts at the origin from rest and moves with constant acceleration, we may say that xo = 0, vo = 0, and a is a constant. Therefore, the motion should be described by the equation x =- (24) mobile adt no (ds brun ( asonglab lo enofmilobedT Pagegul 4) To see if this equation is satisfied, graph your data, using x as the vertical axis and as ai s as the horizontal axis. The graph should appear as a straight line, passing through the origin, with slope a/2. 5) Draw a best-fit straight line through your data points (again, be sure that this line passes through the origin). Do most of the points lie close to the line? If so, then your data describes motion with constant acceleration. 6) Calculate the slope of your best-fit line. Twice the slope should equal the glider's sign acceleration. Does its value match well with the instantaneous accelerations that you measured in the previous