x 2 - x ey

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Name:
Let
1. (2 points) Find
f’(x).
- x
2
x
2. (2 points) Find
f”(x)
“( Zx-
3. (4 points) Find all critical values of
X(X-I)
2 October, 2013
Quiz 4
Math 1100
O
a(I
f(x).
ey
4. (4 points) Is
answer!
S’
increasing or decreasing at x
>0
‘(t
5. (4 points) Is
answer!
“ft)
St
f(x)
f(x)
Px)
=
2? Show clearly how you got
•
concave up or concave down at x
=
2? Show clearly how you got your
2(7)-I
“ft)>O
P(s)
iS
r2
CoC4
6. (4 points) Find a local maximum point of
x-value.
f(x).
Give both coordinates, not just the
Th) 2(o)-j -t <
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c()
q dcxi’1
5
cJ
lc,cctl
co)
your
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icxvwv’i.
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hiJ
1
c,
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