1. (4,0) 2. Yes. 1.6 and 2.0 match up on the line 3. Yes. 2.0 and 2.4 (same as above) 4. Yes. 8.0 and 10 (same) 5. divide number by 10/100/1000 and check whether they meet the points on the line. I have no idea if I make any sense, but just ask if you have any more questions!
