Question -
Answer -
Given:
y = m1x + c1 …(1)
y = m2x + c2 …(2)
x = 0 … (3)
In triangle ABC, letequations (1), (2) and (3) represent the sides AB, BC and CA, respectively.
Solving (1) and (2),we get

Solving (1) and (3):
x = 0, y = c1
Thus, AB and CAintersect at A 0,c1.
Similarly, solving (2)and (3):
x = 0, y = c2
Thus, BC and CAintersect at C 0,c2.
