Answer:
Parts A and B : See below
Part C: (20, 15)
Explanation:
Part A
To compute the data uploaded just plug in values for t = 0, 1, 2, 3, 4, 5 into the equation D = 0.75t. This is a simple equation, you should be able to do it
For t = 0, D = 0.75(1) = 0MB
For t = 1, D = 0.75(1) = 0.75MB
For t = 4, D= 0.75(4) = 3MB
etc
Part B
To plot the graph take any two sets of values to plot two points and draw a straight line. I would choose (0, 0) and (4, 3) and draw a line through these points.
Part C
Use the equation 15 = 0.75t
==> t = 15/0.75 = 20 seconds
Answer: (20, 15)