The straight line ax+by+c=0 where abc is not equal to zero will pass through the first quadrant if
(a)ac>0,bc>0
(b)ac>0 and bc<0
(c)bc>0 or ac>0
(d)ac<0 and / or bc<0

Question

The straight line ax+by+c=0 where abc is not equal to zero will pass through the first quadrant if (a)ac>0,bc>0 (b)ac>0 and bc<0 (c)bc>0 or ac>0 (d)ac<0 and / or bc<0

Anuradha Sharma · Accepted Answer

Dear Student, If line passes through first quandrant then slope will be positive m>0-ba>0 ba<0 So aba2<0or ab<0 So either both are positive or both are negative, Regards