Answer:
option D is correct.
Step-by-step explanation:
The real number y=a is the root of the polynomial f(y) if and only if
f(a) =0
So, when we see a graph of the polynomial, the x-intercepts are the real roots of the graph f(y)
We can find x-intercept of graph, by looking at the graph and finding out points that touch the x-axis on the graph.
In the graph given the points -6 and 2 touch the x-axis of the graph, So these are the real roots of the graph.
So, option D is correct.
