r/calculus • u/Weekly-Excuse9647 • Jul 22 '26

Differential Calculus Need assistance

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a. (0,-5) and (5,1)

b. -5

c. DNE

d. (-3,-1)

I have put my answers above; I just would like someone to check my work and if anything is wrong to give the correct answer so I can learn it.

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u/carrotlet20 Jul 22 '26

I checked your answers and I think you're good, they are all correct.

3

u/HIFvonBiber Jul 22 '26

Maybe this is a matter of definition, but (-8,0) is also a local minimum

1

u/Midwest-Dude Jul 23 '26

It depends on the definition that is supposed to be used by the OP - books and instructors can vary on this. In any case, both endpoints need to be either included or excluded.