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#include <stdio.h>
#include "iostream.h"
void getapoint(double & x,double & y);
double getslope(double x, double y, double x1, double y1);
double getb(double x, double y, double m);
int main(void)
{
double m,b,x=0,y=0,x1=0,y1=0;
while(100){
getapoint(x,y);
getapoint(x1,y1);
m=getslope(x,y,x1,y1);
b=getb(x1,y1,m);
if ((x1-x)==0)
cout<<"X="<<x;
else
cout<<"The line that passes through "<<"("<<x<<","<<y<<")"<<
" and "<<"("<<x1<<","<<y1<<")\nhas a slope equation of ("<<"Y="
<<m<<"X"<<"+"<<b<<")\n\n";
}
}
void getapoint(double & x,double & y)
{
cout<<"Give me 2 cordinate points ";
cin>>x>>y;
}
double getslope(double x, double y, double x1, double y1)
{
return ((y1-y)/(x1-x));
}
double getb(double x1, double y1, double m)
{
return (y1-(m*x1));
}
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