Please help. Will give brainlist, it’s due soon.

1) slope = -2

 y-int = -2

2) slope = y2-y1/x2-x1

*using (-12,19) and (-5,5)

slope = 19-5/-12--5

slope = 14 / -7

slope = -2

y-int = -5

3) slope = rise/run

slope = 4/2

slope = 2

y-int = 3

4) a) the weight of the package in pounds and the cost of shipping

   b) the cost of shipping of one pound

   c) slope = rise/ run

      slope = cost of  shipping / the weight of the package

      slope = 12/3

      slope = 4

   d) the price of shipping one pound

   e) the y-int = 0 when shipping 0 packages 0 dollars are paid

   f) the amount you pay when you ship 0 pounds