Question

If f(x)=[x]-5 what Is f(8.6)

Answer 1

this is basically asking you 
what does X-5 equal when x is 8.6
you replace x with 8.6 
8.6-5
= 3.6

Answer 2

Answer:

3

Step-by-step explanation:

You would replace x with 8.6

the |absolute value| 8.6 is 8

8-5 is 3

the answer is 3