Step-by-step Guide to find the Equation of line and Point of Intersection.

1. E-Math – Coordinate Geometry – Find
Equations of Lines & Point of Intersect
Source: Discovering Mathematics, Star Publishing, 2015, ex5.3, q 11
Three points A(-4,3), B(-6,-5) and C(2,1) are given.
A line AD has the same gradient as the line BC
and it cuts the y-axis at D.
a) Find the equation of the line BC.

2. b) Find the equation of the line AD.
c) Find the coordinates of D.
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