the slope-intercept form is
[tex]y=mx+b[/tex]
m=slope=2
(1,3)=(x1,y1)
we can calculate the equation using the next formula
[tex](y-y_1)=m(x-x_1)[/tex][tex](y-3)=2(x-1)[/tex][tex](y-3)=2x-2[/tex]
[tex]y=2x-2+3[/tex][tex]y=2x+1[/tex]
the equation is y=2x+1
