Find the slop of each line/ coordinates

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Which of the following graphs could represent a cubic function?