#$&* course Phy 231 Now let's take our two dots that we plotted before and make a trapezoid. We need to measure the area of that trapezoid. One way would be to find the midpoint at (3,6). Cut it so that we have a small triangle and then invert it so that its hypotenuse is in line with the other slant to make a rectangle. If the y-axis is labeled as V-BAR and the x-axis is delta T, then to find the area, we would use the formula (V-BAR(delta T)). This formula was found by the average velocity formula. V-BAR= (delta P)/(delta T). When we multiply both sides by delta T, we get the area formula. So, the slope is the average acceleration and the area is the change is position (assuming that the line between (2,5) and (4,7) is a straight line).