Question

the orthocentre of the triangle formed by the lines x+y+1=0 , x-y-1=0 and 3x+4y+5=0 pls answer it's urgent!!​

Answer 1

Step-by-step explanation:

Answer on Question #51346 –Math –Analytic GeometryTaskthe orthocentre of the triangle formed by the lines x+y+1=0,x-y-1=0,3x+4y+5=0 isSolutionIntroduce equations of sides of the triangleAB: x+y+1=0 (1)BC: x-y-1=0 (2)AC:3x+4y+5=0 (3)Equation of AB isy=-x-1,itsslope is k1=-1. Equationof BC is y=x-1, its slope is k2=1. Note that k1*k2=-1, it means that AB and BC are perpendicular, hence, triangle ABC is right. In right triangle ABC, the orthocenter is the polygon vertex B of the right angle.Solving (1) and (2):)1;0(1010210)1()1(0101ByxxyxyxyxyxyxyxAnswer:the orthocenterof the triangleis (0;-1)

make me as brainlist answer.

Answer 2

Answer:

see the answer giving above