<gh_stars>0
x1 = 1
y1 = 0
x2 = 0
y2 = -2
m1 = (y2 / x1)

x1 = 2
y1 = 2
x2 = 6
y2 = 10
m2 = (y2 - y1 / x2 - x1)

diff = m1 - m2
print(f'Diff of 8 and 9: {diff:.2f}')  # 10
x1 = 1
y1 = 0
x2 = 0
y2 = -2
m1 = (y2 / x1)

x1 = 2
y1 = 2
x2 = 6
y2 = 10
m2 = (y2 - y1 / x2 - x1)

diff = m1 - m2
print(f'Diff of 8 and 9: {diff:.2f}')  # 10