Tip:
I don't wish to make the graph but here is some advice,
Parabola:
The equation of the parabola is y = -(x^2) + 36. The vertex of the parabola is at (0, 36), and it opens downward. The parabola crosses the x-axis at (-6, 0) and (6, 0).
Linear Function:
The linear function is represented by f(x) = 20. It is a horizontal line passing through the points (-4, 20) and (4, 20).
Please note that the parabola and linear function intersect at the points (-4, 20) and (4, 20). The linear function remains constant at y = 20 for all other x-values.