Answer:
(-12,3)
Explanation:
Since (6,3) is on the graph of f(x), then f(6)=3.
We want to see if we can use f(6)=3 to find a point on the graph of f(-1/2x).
If you compare -1/2x to 6, what must x be so they have the same value? x=-12.
If that wasn't obvious to you, just solve:
-1/2x=6
Multiply both sides by -2:
x=-12
So if we replace x with -12 in f(-1/2x) we get
f(-1/2*-12)
f(6)=3
And we were given this f(6)=3 so f(-1/2*-12)=3.