Question

solve the pair of linear equation x+y=2 and 2x-y=1 grapphically . write an equation of a line passes through the point of intersection of the given pair of liner equation . how many such line can you find​

Answer 1

Step-by-step explanation:

Given pair of linear equations is

<br> and

<br> On comparing with ax+by+c=0, we get <br>

and

[from Eq. (i) ] <br>

and

[from Eq. (ii)] <br> Here,

<br> and

<br> So, both lines intersect at a point. Therefore, the pair of equations has a unique solution. <br> Hence, these equations are consistent. <br> Now,

<br> If If x=0, then y=2 and if x=2, then y=0 <br>

<br> and

<br> If x=0, then y=-1, if

, then y=0 and if x=1, then y=1 <br>