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MATH 128 TEST 2 SAMPLE
1.) Twelve-hundred feet of fencing is available to enclose a rectangular playground and subdivide it into two smaller rectangular regions. One side of the playground is along the school building wall and requires no fencing as shown below. What is the maximum area that can be enclosed?
2.) Divide and write in standard form:
zero:_______ Multiplicity:_______ Behavior at
zero:_______ Multiplicity:_______ Behavior at zero:_________________
y-int:______________ Degree:__________ Max turning pts:___________
4.) (10 points) Use the following equation to answer the below questions:
4a.) Find the intercepts .
4b.) Find the asymptotes.
5.) (15 points) Given
answer the following:
c.) Use synthetic division to find the other zeros.
6.) Solve and write in interval notation:
7.) (10 points) Use the given zero to find the other zeros:
8.) Graph (Please use dotted lines to show new set of axis.)
9.) Find the exact value using log properties (your answer should NOT contain logs):
10.) Expand and write without exponents:
12.) Krypton-91, an isotope, has a half-life of 10
How much of a 3 gram sample remains after 16 seconds?
13.) Las Vegas began with 2 Dunkin Donuts stores. It is
estimated that 2.25 years later there will
be 14 stores.
a.) Find the exponential growth function that describes
the given information.
b.) How many stores are estimated to be in Las Vegas
after 3.5 years? (Round to the nearest whole number)