Question

solve by graphical method 3x+2y=14 and x+2y=10​

Answer 1

Answer:

3x+2y=14 or 3x+2y−14=0

x−4y=−14 or x−4y+14=0

On comparing the given equations with standard

form of pair of linear equations i.e a

1

x+b

1

y+c

1

=0 and a

2

x+b

2

y+c

2

=0 we get

a

1

=3,b

1

=2 and c

1

=−14

and a

2

=1,b

2

=−4 and c

2

=14

a

2

a

1

=

1

3

,

b

2

b

1

=

−4

2

=−

2

1

and

c

2

c

1

=

14

−14

=−1

$$\therefore \frac{a_1} {a_2} = \frac{b_1}

{b_2} \neq \frac{c_1} {c_2}$$