Question

Choose the correct alternative:

What is the rate of change of demand (x) of a commodity with respect to its price (y) if y = 10 + x + 25x³.

Options

• `10/(1 + 75x^2)` 

• `1/(1 + 75x^2)` 

• 1 + 75x²

• `(-1)/(1 + 75x^2)` 

Answer 1

`1/(1 + 75x^2)`