Help me please this is on distance between two points

Graph g(x)=2cosx . use 3.14 for π . use the sine tool to graph the function. graph the function by plotting two points. the first point must be on the midline and closest to the origin. the second point must be a maximum or minimum value on the graph closest to the first point.

If you could answer these your a life saver

If the discriminant if a quadratic equation is 4 which statement describes the roots?