Question

Which is the function represented by the table?

Answer 1

The function represented by the table is linear function
and pass with (0,0)
so it is in the form
f(x) = m x
where m is the slope

m = [ f(x₂) - f (x₁) ] / [ x₂ -x₁]
(4-0)/(1-0) =4
so
f(x) = 4 x