In y=mx+b format the equation is y=1/2x-4. you need to mark -4 on your graph then go up one unit then over two units. then continue to go up 1 over 2 until you get your line
2.33 is the aprox number we start off with. if we got to find the original, we divide 560 by (7/3). after we estimate the divisior we get 240. 560 - 240 gives us 320. the answer could be 320.
