Show the work please.

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

(05.02)a farmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. a parallelogram with a height of 6 yards and side length 9 yards. the height forms a triangle with the slanted side of the rhombus with a base of 2.5 yards. rhombus is split into a soy half and a corn half. each bag of soil covers 40 square yards. how many bags should the farmer purchase?