Lab2_2

#include "stdafx.h"
#include "iostream"
#include "math.h"
#include "conio.h"

using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
    double x1,x2,y1,y2,a,b;
    cout << "Enter a:"; cin >> a;
    cout << "Enter b:"; cin >> b;
    cout << "A(x1,y1) x1:"; cin >> x1;
    cout << " y1:"; cin >> y1;
    if (y1==a*x1+b) cout << "A prinadlezhit";
    else cout << "A ne prinadlezhit";
    _getch();
    cout << "B(x2,y2) x2:"; cin >> x2;
    cout << " y2:"; cin >> y2;
    if (y2==a*x2+b) cout << "B prinadlezhit";
    else cout << "B ne prinadlezhit";
    _getch();
    return 0;
}