Answer:
Option C. [tex]2[/tex]
Step-by-step explanation:
we have
[tex]y=2x+1[/tex] -----> equation A
[tex]x+3y=10[/tex] -----> equation B
Solve the system of equations by graphing
Remember that the solution of the system of equations is the intersection point both graphs
The intersection point is (1,3)
see the attached figure
therefore
The solution of the system of equations is
[tex]x=1,y=3[/tex]
Find the difference
[tex]y-x=3-1=2[/tex]
