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  • If the lines 3y + 4x = 1, y = x + 5 and 5y + bx = 3 are concurrent, then the value of b is  Option: 1 1<div cl

If the lines

3y + 4x = 1, y = x + 5 and 5y + bx = 3 are concurrent, then the value of b is

 

Option: 1

1


Option: 2

3


Option: 3

6


Option: 4

0


Answers (1)

best_answer

Substituting the coordinates of the point of intersection of first two lines, i.e.
(−2, 3) in the third equation, we have 5.3 − 2b = 3 ⇒ b = 6.

Which is given in (c).

 

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