PM+ws+2,+functions+and+derivs

A. =s(5)-s(0) = -12-8 = -20 Worked by Michelle Tassin

checked correct by Layne MIllerbecas

B. [(2)3 – 6(2)2 + 8(2) + 12]/2  (8-24+16+12)/2    6 mph worked by matt harry Checked by Audrey Luecken

F. The speed of the particle is neither increasing or decreasing, it is constant because zero is neither positive or negative. worked by sheridan gabrisch correct! checked by Ellen Wagner

3. worked by Erin Randall 4.

Worked by Jesus Loa Checked by Scott Trostle