please answer the following question 2c

2. A parabolic satellite dish is pointing straight up. Along a cross-section that passes through the centre of the dish, the height above ground is given by the following equation: y= 1 100 (4- 100x ) + 40 2a Find dy dx x 2 - x + 40 dy 100 dx dx .. . dy 2x dx 100 (1) +0 .. . V dy X dx 50 - 1 .. . 2b For what value of x is dy dx equal to 0? V X 50 - 1=0 ... V 50 = 1 .. . V x = 50a How far above the ground is the dish at its lowest point? y = Enter your next step here m