Given the vertices of a triangle P(3,7), Q(-8,2), R(-4,-9) determine the equation of altitude that passes through the point P.
The slope of P is 4/11, is what I have
Please help
See Equation of any line can be written as y=mx+b.
One should know the value of m and b.you have calculated m=4/11.but still don't know b.
By 7=4/11(3)+b we can get value of b that is
b=7-12/11
now put the value of m and b in y=mx+b and you will get the desired equation.now any problem?Feel free to ask.