# For what values of x is #f(x)=-x^3+x^2-x+5# concave or convex?

Second derivative is positive and hence it is convex or minimum.

Therefore it is convex or minimum.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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- What are the coordinates of the point of inflection on the graph of #y=x^3-15x^2+33x+100#?

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