4.2 #39: A sky diver jumps from a reasonable height above the ground. The air resistance she experiences is proportional to her velocity, and the constant of proportionality is 0.2. It can be shown that the downward velocity of the sky diver at time t is oiven byv(t)=180(1-e-0.2t)Where ' is measured in seconds (s) and v(t) is measured in feet per second (fsec).a) Draw a graph of v(t)=180(1-e-0.2t) by determining is key chanacteristics. (4 pts)What type of function is this? Strictly Increasing or Decreasing?Domain? Vertical interceph? Concave up or concave down?Rang: Asymplotes?