step 1
Plot the given points of the function f(x)
see the attached figure below
Please wait a minute to draw the figure
The function f(x) is negative in the interval [-4,-3]
The function g(x) is negative in the interval (-infinite, -5] U (1, infinite)
therefore
Both functions are negative in the interval [1,3]
In a number line, the solution is the shaded area at the right of x=1 (closed circle) and at the left of x=3 (closed circle)
see the figure below
