We have the next graph
(a) To know if g(-1) is negative we must see the graph when x = 0
We can see that when x = 0 the function takes the value of -4. Since -4 is negative, g(-1) is negative.
So, the answer to the question is: Yes
(b) To know for which values of x g(x) = 0, we must see the points where the function passes through the x-axis.
In this case we can see only one point: (1, 0)
So, the answer is
(c) To find the values of x where g(x) < 0 we must see the part in the graph that is below the x-axis.
In this case, these values go from
