Answer :

We need to find slope of a line passing through origin (0, 0) & mid–point of P (0, –4) and Q (8, 0)


Let M mid–point of P (0, –4) and Q (8, 0)


Mid–point formula M (x, y)


Mid–point of PQ




We know that,


Slope of line passing through (x1, y1) and (x2, y2) is



Slope of line between points O (0, 0) and M (4, –2)




Hence, slope of line is


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