If f (x) = 6x-4 what is the f (x) when x=8

44

Step-by-step explanation:

Function notation is f (x) and says an output value f (x) for an input value x. So when x=8, we find f (8).

We substitute x=8 which is f (8) = 6 (8) - 4.

We simplify f (8) = 48-4=44.

So f (8) = 44. When x=8, f (x) is 44.