Question

Derivative problem!

The quantity sold, q, of a certain product is a function of the price,p, so Q=F(P). Interpret the statements in terms of demand for the product
F(15) = 200
F'(15) = -25


Estimate f(14)

Answer 1

I only need help estimating F(14)

Answer 2

F(15) = 200

You'll sell 200 at the price

F'(15) = -25

Demand is falling at rate 25 sales per unit price

You can thus use this to extrapolate back to f(14).

Answer 3

@IrishBoy123 I understand that's but I don't understand how to even begin to solve for F(14)