Answer:
-9, -6, and -2
Explanation:
Simply evaluate the function at the extremes of the domain to find the range of elements that are solutions to f(x).
f(-1) = (1/2) - 10 = -9.5
f(3) = 8 - 10 = -2
Notice -9, -6, and -2 fall into those ranges. To verify integer solutions, simply plug in the remaining integers 0, 1, and 2.
f(0) = 1 - 10 = -9
f(1) = 2 - 10 = -8
f(2) = 4 - 10 = -6
Cheers.