The vertices of a rhombus are located at (a, 0), (0, b), (-a, 0), and (0, -b). What is the midpoint of the side that is in quadrant II?

answer:

c. the third graph

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.