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Two line l and k intersect at a point (4, 3). Is the product of their slopes -1?
(1) x intercepts of line l and k are positive
(2) y intercept of line l and k are negative
OA B
Source: Princeton Review
(1) x intercepts of line l and k are positive
(2) y intercept of line l and k are negative
OA B
Source: Princeton Review
