Question

prove the equation of the straight line joining the points (a, b), (a-b, a+b)is ax +by =a^2+b^2.what is the slope of the line.......................................................plzzz don't spam..... I Request kindly to answer it properly ​

Answer 1

dy/dx=-1

slope of this line is -1

Answer 2

Answer:

using two point formula we can prove that equation of the straight line joining the points (a,b) and (a-b,a+b) is ax+by=a²+b²