1. I think the distance is 5 miles because the y-axis points for both coordinates are the same, and the difference between the x-axis points is 5; 9-4=5
2. a. (3, 1) and (3, 5) because if you remove the -, it will be (3, 1) and (3, 5). b. (-2, -6) , (-2, -10) , (2, 6) , and (2, 10).
b. All you have to do is get 2 points that are negative, and for the other 2 coordinates, remove the negative sign.
30% off 25: multiply 25 by .30 to find 30%: 7.5. Now subtract that from the sales price: 25-7.5=17.5 Do the same for store B: .40•30=12. 30-12=18. So store A is better by $.50 :) hope this helps :)
