Question

By the graphical method, find whether the following pair if equation are consistent or not. If consistent, find its solution from the graph . 3x+y-5=0, 2x-y-5=0

Answer 1

Answer:

ANSWER

Table of eq1

x 1 2 3

y 2 1 0

Table of eq2

x 1 2 3

y 2 1 0

The given equation can be written as

x+y−3=0 .......eq1 and 3x+3y−9=0 .........eq2

Here,

a

2

a

1

=

3

1

,

b

2

b

1

=

3

1

,

c

2

c

1

=

9

3

=

3

1

∴

a

2

a

1

=

b

2

b

1

=

c

2

c

1

Thus, the given pair of equation is consistent.

solution