Question

4. Solve the following pair of linear equations graphically: 3x + y - 11 = 0; x - y - 1 = 0
Shade the region bound by these lines and the axis of y.
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Answer 1

Step-by-step explanation:

3x + y -11 =0 ......... 1

x - y -1 =0 ........2

Multiplying equal 2 by 3

3x - 3y - 3 = 0 ...... 3

subtracting 3 from 1

3x + y - 11 =0

3x - 3y - 3=0

- + +

.....................

0 4y. -8

y= -8

4

y=2

now substitute y in any one equation u will get the value of x