For question between 13 -> 17 replace n with the number.
Example:
13.) n = 2; 2+(-1) = 1
1 down, means minus 1 from whole equation
moving 1 to left means add 1 to every x
reflecting across x axis means multiply every x by -1
a.

b.

c.
It's increasing cause it's going higher if it's decreasing it's going lower
Answer:
10 for 9$
Step-by-step explanation:
because say the each ball cpsts a dollar, and the total for 3 would be 3$ for the cost of 10 would be 9 so its less but more mo ey spent