If (2, – 1) is a solution of 4x + by + 4 = 0, then the value of ‘b – InterviewSolution

1.

If (2, – 1) is a solution of 4x + by + 4 = 0, then the value of ‘b’ is A) 12 B) 8 C) 4 D) – 12

Answer»

Correct option is (A) 12

\(\because\) (2, – 1) is a solution of 4x + by + 4 = 0

\(\therefore\) \(4\times2+b\times-1+4=0\)

\(\Rightarrow\) b = 8+4 = 12

Correct option is A) 12

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