Question

Solve the system of equations by graphing.

x+y=3y=2x−15

Answer 1

x+y=3y

x =2y

so putting the value of y we get x so

case (i) -- when y =0 then x=2

case(ii) --- when y=-| then x =-2

case (iii)-- when y=| then x =2

so A(2,0); B(-2,-|); C(2,|)

plot these value of A,B,C on graph paper

same way in equation ii put the value of y u get x and plot that values on graph paper

the point om which both these line cut each other that point will give u the value of x and y