def solution1(l1, l2):
     s1 = slope(l1)
     s2 = slope(l2)
     y_intercept1 = y_intercept(l1[0],s1)
     y_intercept2 = y_intercept(l2[0],s2)
     if s1 == s2 and y_intercept1 == y_intercept2:
     	return "they are the same lines"
     	

def slope(x1,y1, x2,y2):
	return (y2-y1)/(x2-x1)

def y_intercept(x,y, slope):
	return y-(x*slope)

if __name__ == '__main__':
    line1 = ()
    line2 = ()
    solution(line1, line2)
ea97178e0b8141dec41ea81a4bc6d1769ec7ee62
<mask token>


def y_intercept(x, y, slope):
    return y - x * slope


<mask token>

<mask token>


def slope(x1, y1, x2, y2):
    return (y2 - y1) / (x2 - x1)


def y_intercept(x, y, slope):
    return y - x * slope


<mask token>

def solution1(l1, l2):
    s1 = slope(l1)
    s2 = slope(l2)
    y_intercept1 = y_intercept(l1[0], s1)
    y_intercept2 = y_intercept(l2[0], s2)
    if s1 == s2 and y_intercept1 == y_intercept2:
        return 'they are the same lines'


def slope(x1, y1, x2, y2):
    return (y2 - y1) / (x2 - x1)


def y_intercept(x, y, slope):
    return y - x * slope


<mask token>

def solution1(l1, l2):
    s1 = slope(l1)
    s2 = slope(l2)
    y_intercept1 = y_intercept(l1[0], s1)
    y_intercept2 = y_intercept(l2[0], s2)
    if s1 == s2 and y_intercept1 == y_intercept2:
        return 'they are the same lines'


def slope(x1, y1, x2, y2):
    return (y2 - y1) / (x2 - x1)


def y_intercept(x, y, slope):
    return y - x * slope


if __name__ == '__main__':
    line1 = ()
    line2 = ()
    solution(line1, line2)

def solution1(l1, l2):
     s1 = slope(l1)
     s2 = slope(l2)
     y_intercept1 = y_intercept(l1[0],s1)
     y_intercept2 = y_intercept(l2[0],s2)
     if s1 == s2 and y_intercept1 == y_intercept2:
     	return "they are the same lines"
     	

def slope(x1,y1, x2,y2):
	return (y2-y1)/(x2-x1)

def y_intercept(x,y, slope):
	return y-(x*slope)

if __name__ == '__main__':
    line1 = ()
    line2 = ()
    solution(line1, line2)