Question

Write a function rule for “the output is three less than the input.”

Answer 1

Given : The output is three less than the input

Lets input be $\mathrm{x}$ and output be $\mathrm{y}$

So, according to given condition,

$\mathrm{y}=\mathrm{x}-3$

Hence, a function rule for the output is three less than the input is $\mathrm{y}=\mathrm{x}-3$.