Question

What is the inverse of this mapping? (Picture is a link below in a comment by me) :)

Answer 1

Please help me!

Answer 2

ok so in math a function is a like a machine... we input some number, it changes it by some amount, then outputs a new number. We call the input the x number and the output the y number.

Answer 3

the inverse is the opposite. "if we have some y, what x did we need to get there"

Answer 4

that means that if we inverse the function we run it backwards.

7 goes to 4 and -5 goes to 1