calculus
posted by dylan .
i have a problem figureing out this question do you have any help? need to find the input and output of these numbers input 2 & output 9, input0 & output7, input9 & output2, input20 & output8 nothing seems to work. help me please

Except for the last one, the output is the input plus 7. I can't think of a simple rule that would apply to all four. One could write a y(x) polynomial that would go through all points. I am confused about what you mean by inputoutput. Are you looking for a function y = f(x)?