The answer is d. to find the slope you can do y2-y1/x2-x1 8-(-1)/3-0= 9/3 or 3 you can then put one of the points into the slope intercept form y=mx+b or 8=3(3)+b you get 8=9+b. you subtract 9 from both sides to get -1=b. y intercept means that the point is (0,-1)
