1. **State the problem:** We need to find the value of the expression $$-1 \cdot f(-8) - 4 \cdot g(4)$$ given the graphs of functions $f(x)$ and $g(x)$.\n\n2. **Find $f(-8)$:** Locate $x = -8$ on the graph of $f(x)$ (blue solid line). From the graph, $f(-8) = 6$.\n\n3. **Find $g(4)$:** Locate $x = 4$ on the graph of $g(x)$ (pink dashed line). From the graph, $g(4) = -6$.\n\n4. **Substitute values into the expression:**\n$$-1 \cdot f(-8) - 4 \cdot g(4) = -1 \cdot 6 - 4 \cdot (-6)$$\n\n5. **Simplify:**\n$$= -6 + 24 = 18$$\n\n**Final answer:** $$18$$