Given: x = t3 + 1, y = t² – t a) Find dy/dx and d²y/dx². b) For which values of t is the curve concave upward? c) Find any points on the curve where the tangent is horizontal or vertical.

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A: Here is the solution:

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A: We find linear function using table and then find f(0).

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Q: last two questions?

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A: We can solve this as follows:

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Q: ignore the question above please just do #7

A: a) To find the number of viewers on week 6 we plug t=6 N(t)=(60+2t)23…