Determine whether expression is a monomial -3/7mn^2p^5

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.

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

How do you determine if an ordered pair is a solution to a given equation?