If functions transfer some a to b via some formula, then inverse of such functions transfer b to a via some other formula.
Hope this helps.
Answer:
20:5 - If you're going to simplify it, do 20/5 which is 4/1.
Step-by-step explanation:
A function is a set of ordered pairs in which no two different ordered pairs have the same x -coordinate.
Btw you need to add an image so we can see which the order pairs
-8(9)= -72; -4(-6)= 24; -72+24= -48
