3. Mark watches Marcus walk across a bridge, which can be modeled by E = -0.125d(d - 8), where d is the disto that the bridge covers, in meters, and E is the elevation of the bridge, in meters, from ground level. Sketch the bridge that Marcus walks over. Tip: Be accurate with your zeros! [3 APP marks] -4- -2- b. How high above ground level is the bridge at its highest point? [1 APP mark] c. At the highest point of the bridge, how far has Mark watched Marcus walk? [1 APP mark] 4. After Sadia performs her piano recital, the audience applauds for 30 seconds. The table below shows t noise the audience generates for a portion of the thunderous applause from her brilliant play! Determ chip between time and noise is quadratic by calculating finite differences