MA140-01
4/8/09
Page 1
Major Quiz 5
Calculator Portion
What’s up, ________________________?
Show all your work and explain your answers completely. I cannot give partial credit for answers that are both wrong and
unexplained. Even correct "bottom line" answers that are mysterious and unsupported will not be considered completely correct.
Show me what you are thinking. Try to keep your answers neat and organized so that I can follow them easily.
1.) A rectangular playground is to be fenced off and divided in two by another fence parallel to
one side of the playground. Nine hundred feet of fencing is used. Find the dimensions of the
playground that will enclose the greatest total area.
2.) If
3 2
( )
f x ax bx c x d
= + + +
, determine a, b, c, and d so that
f
will have a
relative extremum at (0, 3) and a point of inflection at (1, -1).
