Question

What is the axis of symmetry and vertex for tge function f(x)=3(x-2)

Answer 1

If you distribute the multiplication, your function is written as

$y=f(x)=3x-6$

Like every function in the form $y = mx+q$, this function represents a line. A line has no vertex and no axis of symmetry (actually, it is symmetric with respect to every perpendicular line).