Input 1 2 3 4 output -8 -11 -14 -17 what is the rule

The function rule is:

Step-by-step explanation:

Using the given input/output values, we can take two pairs of input-output values for finding the rule.

The function is a linear function as the input and output are changing linearly.

Required pairs are:

(1,-8)  and (2, -11)

The general rule for linear function is:

m is the slope of the function calculated using the formula

Putting the values

Putting in equation

To find the value of b, putting (1,-8) in the equation

Putting the values

Hence,

The function rule is:

(3x-8) or (3x+8)

step-by-step explanation: