The function rule is: f(x)=x+4
Step-by-step explanation:
Following linear equation is used to find the function rule from tables

Here
y is the output(f(x) and x is the input
Slope is calculated as:
m=ΔY/ΔX
ΔY is the difference between x values and Δy is the difference between y values (Output values)

So,

Putting in equation

To find the value of b, we will put any pair of x and f(x)=y in equation

Putting the value of b

Replacing with the table names

The function rule is: f(x)=x+4
Keywords: Functions, Rules
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