There are four main parts that constitute a function:

The name of the function

The input

A rule to turn input into output

The output

function, $f$

A specific rule which transforms the input into the output

QUESTION $4$

Consider the function "add $16$ to the input, subtract $7$ from the result"

A$)$ When the input of the function is $-7$ the output will be $2$ syntax ok

B$)$ When the input of the function is $6$ the output will be

Preview

$15$ syntax ok

C$)$ When the input of the function is $x$ the output will be might be using an incorrect one.

Preview

$y$ syntax error. Check your variables $-$ you

D$)$ When the input of the function is $t$ the output will be