<image>The graph of the quadratic function $$y=ax^{2}+bx+c(a\neq 0)$$ is shown in the figure. Based on the graph, answer the following questions: 
$$(1)$$ Write down the two roots of the equation $$ax^{2}+bx+c=0$$; 
$$(2)$$ Write down the solution set of the inequality $$ax^{2}+bx+c > 0$$; 
$$(3)$$ Write down the range of values for the variable $$x$$ for which $$y$$ decreases while $$x$$ increases; 
$$(4)$$ If the equation $$ax^{2}+bx+c=k$$ has two distinct real roots, find the range of values for $$k$$.