I need help with my homework .... It is passed due I have to get it done. If not I will get a F on it ... Please help me with it

a) see attachment for graph
b) D: [0, 2.5] time cannot be negative so the x-values start at 0
R: [0, 100] height cannot be negative so the y-values start at 0
c) 84 ft refer to the red coordinate on the graph
d) 1.75 seconds refer to the blue coordinate on the graph
e) 2.5 seconds refer to the green coordinate on the graph
When looking for coordinates at the various given values, remember that x is time and y is height.