In a function, for every number for 'x' there is only one 'y'. So, if you have two ordered pairs in a choice that have the same number for 'x', that is not a function.
Remember an ordered pair is written (x, y).
B is not a function as: (x, y) (1, -2) (1, -3) (1, -4) ^ All of the x-coordinates are the same.
E is not a function as: (x, y) (6, -1) (6, -8) ^ Two of the x-coordinates are the same.
There is 16 ounces in 1 pound. so you would want to divide 12.40 by 5 = $2.48 . so its $2.48 for a pound divide by 2 and you answer would be $1.24... i hope that helps
The first or third graph represents the situation After 25 days he would expect to have , i would say 88 packs left I cant make out the bottom figure below third graph
