Hello all, I have 2 questions and if you could help me and explain them I would appreciate it so much. Thank you!

1. The marginal costC′(q) (in dollars per unit) of producingqunits is given in the following table.I found the answer of (a) which is 19,500 but how do I find (b) without a function to plug into my integral?

(a) If fixed cost is $12,000, estimate the total cost of producing 400 units. (b) How much would the total cost increase if production were increased one unit, to 401 units?

q0 100 200 300 400 500 600 C′(q)24 20 15 17 22 32 38

2. The graph of a derivativef′(x) is shown in Figure 5.67. Fill in the table of values forf(x) given thatf(0) = 2.

x0 1 2 3 4 5 6 f(x)2

Figure 5.67Graph of f′, notf

I have no idea how to even start this one. Please help me!