Explain how to find the input given a function rule and output

So exg

input is the numbers that will work so normally the range is all real numbers

make sure that you don't have any numbers that will make impossiblities exg

is the function is f (x) = 3/x you can't use 0 for x because 3/0 is undifined and is impossible so

input is the numbers you put in

out put is what numbesr you get from the input exg

if function = f (x) + x+3 then

if input=3,5,6 then output is

(replaace 3,5,6 for x and solve)

output is 6,8,9