import java.util.Scanner;

public class Recta
{
	private double m = 0.0;
	private double b = 0.0;
	private static Scanner teclado = new Scanner(System.in);

	public boolean leer()
	{
		System.out.print("m: ");
		m = teclado.nextDouble();
		if ( m == 0.0 ) return false;

		System.out.print("b: ");
		b = teclado.nextDouble();
		return true;
	}

	public String toString()
	{
		return "y = " + m + "x + " + b;
	}

	public boolean esParalela(Recta otra)
	{
		return m == otra.m;
	}

	public boolean esPerpendicular(Recta otra)
	{
		return m == 1.0 / otra.m;
	}
}