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For each of the following graphs, comme...

For each of the following graphs, comment whether f(x) is increasing or decreasing or neither increasing nor decreasing at x = a.
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Text Solution

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(a) Neither increasing decreasing as `f(a-hltf(a)` and `f(a+h)ltf(a)`
(b) Decreasing as `f(a-h)ltf(a)ltf(a+h)`
(c ) Increasing a `Sf(a-h)ltf(a)ltf(a+h)`
(d) Neither increasing or decreasing as `f(a-h)ltf(a)` but f(a+h)=f(a)
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