Suppose that the total profit in hundreds of dollars from selling x items is given by
P(x)= x^2 + 8x  14. Find the marginal profit at x= 1.
A. 200
B. 800
C. 700
D. 600
How do I solve it?
P(x)= x^2 + 8x  14. Find the marginal profit at x= 1.
A. 200
B. 800
C. 700
D. 600
How do I solve it?

P'(x) = 2x + 8
I will evaluate at x = 1, since negative sales is not realistic.
P'(1) = 2(1) + 8 = 6, or $600.
I will evaluate at x = 1, since negative sales is not realistic.
P'(1) = 2(1) + 8 = 6, or $600.