Amathematical expression that compares one number to another is called a

Which expression is equivalent to sq-80

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.

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is