In a set of data, to find the median you first have to order your data from greatest to least then find the center or (median) of your data. E is your answer.
X axis (-40,0)
y axis (0,15)
<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>
4 is a regular rhombus I think don't quote me on that. I am pretty sure though