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# Tutor profile: Andrew L.

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Andrew L.
Math is a hobby
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## Questions

### Subject:Pre-Calculus

TutorMe
Question:

How do you find the MIN and MAX of a function?

Inactive
Andrew L.

Set x=0 then y=0 solving for the unknown(s) in each equation. You will now be able to obtain your minimums and maximums

### Subject:Calculus

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Question:

How do you know when the derivative of a function is equal to ZERO by looking at the graph of the function?

Inactive
Andrew L.

Looking at a graph, when the function changes direction and there is a minimum or maximum point on the graph, this is where the derivative of the function is equal to zero.

### Subject:Algebra

TutorMe
Question:

Why is anything to the power of ZERO equal to ONE?

Inactive
Andrew L.

x^3/x^2 = x^(3-2) = x^1 = x x^3/x^3 = x^(3-3) = x^0 = 1 ... ex) x/x = 1 and 2/2 = 1

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