Use a for loop to enter exactly three sets of coefficients asdesired from a file

Question

Use a for loop to enter exactly three sets of coefficients asdesired from a file. The name of the file should be enteredfrom the keyboard in the main function. Output should go tothe screen. The following functions should be called from yourmain program:

getCoefficients:                     {Reads, and returns the coefficients of the quadratic equationusing reference parameters. The input file should be passed asa parameter.}

echoEquation:            {Displays the quadratic equation with the coefficients echoed. Usethe form

ax^2 + (b)x + (c) = 0 }

error:               {When a = b = 0 the display the error message: "No linear orquadratic equation is formed."}

linear:   {Computes and displays the one root of alinear equation.}

complex: {Roots exist, but are not real. Print themessage "Roots are not real."}

realRoots: {Computes and displays real roots.}

Test case input file:

1 2 3

5 6 1

0 3 6

Test case screen output:

           COMPUTE THE REAL ROOT(S) OF A QUADRATIC OR A LINEAR EQUATION

Enter the name of the input file  e:in6.txt

Equation 1.00x^2 + (2.00)x + (3.00) = 0

Roots are not real.

Equation 5.00x^2 + (6.00)x + (1.00) = 0

Roots are -0.20 and -1.00.

Equation 0.00x^2 + (3.00)x + (6.00) = 0  

Root is -2.00.

Programmer:

Explanation / Answer

please rate - thanks #include #include #include using namespace std; void showOpening(); voidgetCoefficients(ifstream&,double&,double&,double&); void echoEquation(double,double,double); void error(); void linear(double,double); void complex(); void realroots(double,double,double); int main() {double a,b,c; double discriminant; int i; ifstream in; ofstream out; char filename[30]; coutfilename; in.open(filename);       if(in.fail())               { cout

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