Solve the following system of equations graphically. click on the graph until the correct solution of the system appears.

2x + y = 2
x - y = 1

we have

------> equation A

------> equation B

we know that

The intersection point both graphs of the system of linear equations is the solution of the system

Using a graphing tool

see the attached figure

the solution is the point

and the y-intercepts are the points and

the answer in the attached figure

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐