fskilnik wrote:
Which of the following may be correctly expressed by the graph representation given above?
(A) y = |x|^2
(B) y = 2^x
(C) y = x^(-1/2)
(D) y = x^(-1)
(E) y = x^(-2)
GMATH practice exercise (Quant Class 4)
Spoiler: ::
Attachment:
05-Fev19-8j.gif
This is a symmetric crve across Y axis ..so positive and negative values of X shouldnt effect .It should hold true and same for either of that.
Next we see as X decreases Y increases ..Option E states y=1/x^2...Means Y is max when X is least and so On..
So choice E