We are given a velocity vs. time graph. It starts at 15 m/s at t=0 and goes to -10m/s at t=4 then it goes from -10m/s at t=4 to 15m/s at t=10 and we are told to find the postion after t=10 I first found the slope of the first segment which was -6.25. so I did ∫-6.25t+15 dt from 0 to 4 and got 10m I found the second slope, 4.16...., and did ∫4.16...t-10 dt from 0-6 (because I moved it to the orgin so it made sense) and got 15m. So I added the two segments to get 25m. But the site keeps saying that's the wrong answer. What am I doing wrong?