Write a Stub for the Following Function Prototype

question 1

Essay

Write a stub for the following function prototype:
double root( double a,double b,double c,int i);
// Precondition: a != 0 and a,b,c are coefficients of
// a quadratic equation a*x*x + b*x + c = 0 The value
// of i is either +1 or -1 to choose which root.
// Postcondition: return value,x,satisfies the
// equation a*x*x + b*x + c = 0

---

Definitions:

Required Return

The minimum annual percentage yield that an investor expects or requires from an investment.

Common Stock

A type of security that represents ownership in a corporation, giving holders voting rights and a share in the company's profits through dividends.

Investment

The allocation of resources, usually money, in expectation of achieving a future return or profit.

Annual Dividend

The total amount of dividends a company pays out to its shareholders each year, usually quoted as an amount per share.