1. The functionv(t)=9t ,0t9 is the velocity in m/s of a particle moving along the x-axis. What is the particle's position at time t=9 seconds if s(0)=9

A. 6m

B. 18m

C.27m

D. 36m

E. 5Om

2. Find the area of the region bounded by the grap450Nmhs ofy=83x(x8) and y=1021x, x=2, and x=8.

A.18

B.38

C.72

D.74.25

E.198

3. Find the area of the region bounded by the graphs of y=3x6, y=2x+10, and y=0

A. 5.4

B. 5.425

C. 5.5

D. 5.55625

E. 5.625

4. A spring has a natural length of 1 meter. A force of 25 newtons stretches the spring by41 meter. How much work, measured in newton-meters, is done by stretching the spring 3 meters beyond its natural length?

A.150Nm

B.225Nm

C.445Nm

D.500Nm

E.900Nm