Question

Asked Oct 26, 2019

Step 1

a) The first answer is wrong. Because the graph is in (0,7).

So it is increasing in (0,1)U(3,7)

Step 2

Answer of (b) is correct.

c) Concave upward means where it look like U.

That is in (2,4) and (5,7) [blue marked]

Answer(c): (2,4)U(5,7)

Step 3

Concave downward means where it look like** flipped U**.

It occurs in (...

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