The graph of a functions f(x) is shown as right below. Find the following limits
ID: 2891885 • Letter: T
Question
The graph of a functions f(x) is shown as right below. Find the following limits. If a limit is infinite, state whether it is infinity or -infinity li_x rightarrow (-3) - 1/f(x) lim_x rightarrow 2 f(x) - f(2)/x - 2. Justify your answer. List all values a at which f is continuous but not differentiable. a = List all values b at which f is discontinuous but is continuous from the left. b = f have a removable discontinuity? Circle "YES" or "NO" and answer the question that follow. At what number c? C = What value f(c) will make f continuous at c? f(c) =Explanation / Answer
a)
Notice at x = -3(-),
which is a value of x slightly less than -3,
the value of y is slightly positive
So, 1/f(x) will be
1/(slightly positive
which is
+infinity
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ii)
WE are basically finding f'(2)
which is equal to the slope of the line between
(0,5) and (3,1)
Slope of this line is -4/3
So, f'(2) = -4/3
-4/3 ---> ANSWER
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b)
It is cont but not diff at...
a = 0
because at a = 0, the graph has no break
but there is a sharp corner
b = 3
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YES
Yes, it has a removable discontinuity át c = 5
--------------------------------------------------------------
f(c) has to be 2
--------------------------------------------------------------
Yes, jump discon at
x = -2
YES
d = -2
f(d) has to be 3
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