Question

The straight line ax + by + c = 0 where abc¹ 0 will pass through the first quadrant if-

• A. ac< 0, bc> 0
• B. ac > 0 and bc< 0
• C. bc> 0 and/or ac > 0
• D. ac < 0 and/or bc< 0

Answer 1

Answer: (D)

ac < 0 and/or bc< 0

Answer 2

For first quadrant $–\frac{c}{a}$ > 0 & $–\frac{c}{b}$ > 0

c & a have opp sing, C d b have opp sigh ac < 0 , bc < 0