Step-by-step explanation:first the y-intercept is 3 and you can tell by counting up from the origin and you know that the slope is 1/2 because if you pick a point on the line and go up one left right you are still on the line.
Now to determine if it's B or C pick a point that is shaded such as 0,0 and then insert it into each equation and if the expression is true then that's the answer. Therefore it is B
