ICSE Class 10  Various Forms of Equation of A Line Videos
 a straight line passing through the points of coordinates a 2 and 4 and B 5 and  2 find equation of line ab value of a in the line passing through the point coordinate P K + 3 and K  4
 Explain me Linear equation

exercise 12 b q 8 (eq. of a straight line)
 a straight line makes on the coordinate axes positive intercepts whose sum is 5.if the line passes through P(3,4),find its equations
 find the equation of a line having inclination 60 and making an intercept of 1/3 on y axis

Q. 37

Q5 a part
 Write the equation of perpendicular bisector of line joining A(4,2) and B(3,5)
 Find the equations of the diagonal of a rectangle whose sides are x+1=0,x4=0,y+1=0 and y2=0.

Plz explain the step highlighted
Why are they added and why the sum is equal to1