Math. 69.104A Sample Test
Math. 69.104A
DAILY QUIZ for the week of Sept. 9, 1996
Dr. Angelo Mingarelli
Department of Mathematics and Statistics
Carleton University
Ottawa, Ontario, Canada, K1S 5B6
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1. On which interval is the function
f(x)= x
2
+ x one-to-one??
(Read the "x2" as "x squared", if you're using an older browser)
(-inf , 0)
(-1/2 , inf)
(-1 , 0)
2. On which interval is the function
f(x)= x
2
+ x monotone increasing?
(-inf , -1)
(-1/2 , inf)
(-1 , 0)
3. On which interval is the function
f(x)= x
2
+ x monotone decreasing?
(-1 , 0)
(-inf , -1/2)
(-1/2 , 0)
4. On which interval does the function
f(x)= x
2
+ x have an inverse?
(-2 , 1)
(-1 , 0)
(-1 , -1/2)
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