The slope is -2. (0,3) is (x1,y1) and (1,1) is (x2,y2) and so slope, m=y2-y1/x2-x1 so then it would be (1-3)/1-0 and that would be -2/1 which is -2. So then you would use point slope form so you would have y-y1=m(x-x1) and then you would go ahead and plug in your values so you get y-3=-2(x-0) adding 3 to both sides gives you y= -2x-0+3 which then simplifies to y=-2x+3 so your answer would be y=-2x+3
