Perpendicular Lines

Perpendicular Lines

Created by Mr Lafferty @ mathsrevision.com

Perpendicular Lines

m_1×m_2=-1

m_1 = -0.4 (slider from -10 to 10, step 0.05)
m_2 = 1.2 (slider from -10 to 10, step 0.05)
c_1 = 2.1 (slider from -10 to 10, step 0.1)
c_2 = -4.5 (slider from -10 to 10, step 0.1)
a: y = (m_1 * x) + c_1
c: y = (m_2 * x) + c_2
A = Point(c)
B = Point(a)
C = Intersect(a, c)
α = Angle(B, C, A)
f: (m_1 * m_2)