i tried it using physics equations and got a distance of 437.5..not sure if that is right though.
The velocity graph of a car accelerating from rest to a speed of 105 km/h over a period of 30 seconds is shown. Estimate the distance, d traveled during this period. (Use M6 to get the most precise estimate. Round the answer to two decimal places.)
I get the delta x, and multiply it by the y value corresponding to the middle of the rectangle, but my problem is i cant get it accurate enough to 2 decimal points :/