The equation should be [tex]f = x\times 5[/tex]
Calculation of an equation:
The equation represents the statement where the values of two mathematical expressions should be equivalent to that presented by the sign = or equal sign.
Since the input of a function f increases by 1, the output increases by 5
So, the equation should be
[tex]f = x\times 5[/tex]
Learn more about the equation here: https://brainly.com/question/24685162
