Assertion: parabola's point | /r/CapableOf | lie 1 = 2a
Facets:
Source sentences:
text: From (ii) and (iv) we find that the points Q(x 2 , y 2 ) and R(x 3 , y 3 ) lie on yy 1 = 2a (x 2 + x 1 ), which being of first degree in