Question

solve the pair of linear equations graphically and find the vertices of a triangle formed by these lines and y-axis. x-y=-1, 3x +2y-12=0.​

Answer 1

In equation first x - y = -1

x = y - 1

put this value in equation 2

3x+2y-12=0

3(y-1)+2y-12=0

3y-3+2y-12=0

5y-15=0

5y=15

y=15/5

y=3

y=3

x-y=-1

x-3=-1

x=3-1

x=2

y=3

x=2

Answer 2

Answer:

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