Draw the triangle in space :Touseef wrote:A triangle has vertices A(4,1), B(-2,3) and C(2,-3).
What is the equation of the altitude through A i.e. the line which passes through A and is perpendicular to BC?
1>find out the slope of the line BC. (y2-y1/x2-x1)
2>take negative reciprocal of this slope.
3>make an equation -> y = mx + c. where m is the -ve reciprocal obtained from 2.
4>Put the x and y co-ordinates of A in above equation to obtain value of C.
5>Then rewrite the equation in the form y = mx + c, with the m and C we got from 2 and 4.
