# Tutor profile: John B.

Inactive

John B.

High school Math Teacheer/Former college Tutor

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## Questions

### Subject: Pre-Calculus

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Question:

Tell Me the end behavior of the following polynomial, and explain how you know. $$-x^2+2$$

Inactive

John B.

Answer:

As x approaches + or negative infinity, y will approach negative infinity. You know this by using the leading coefficient test to see that the degree is even and the leading coefficient is negative.

### Subject: Calculus

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Question:

Find the derivative of $$5x(e^x)$$.

Inactive

John B.

Answer:

$$5(e^x)+5x(e^x)$$

### Subject: Algebra

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Question:

The two equations below represent inverse variation, and direct variation. Tell me which equation is inverse variation, and which is direct. y=5x y=2/x

Inactive

John B.

Answer:

y=5x is direct variation y=2/x is inverse variation

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