Question

Write a function rule for the table. x f(x) 2 6 3 9 4 12 5 15 Help PLZ

Answer 1

Answer: $f(x)=3x$

Step-by-step explanation:

It is important to remember that the input values are the values of $x$ and the output values are the values of $y$ ($f(x)=y$).

Now, in order to solve the exercise you must analize the table provided. You can observe that each output value is obtained by multiplying the corresponding input value by 3:

$3*2=6\\3*3=9\\3*4=12\\3*5=15$

Therefore, knowing this, you can determine that the function rule for the given table is:

$f(x)=3x$