1.

If (- 3, 2) is a solution of 5x – 8y + k = 0, then the value of k is A) 15B) 16 C) 31 D) 13

Answer»

Correct option is (C) 31

\(\because\) (- 3, 2) is a solution of 5x – 8y + k = 0

\(\therefore\) \(5\times-3-8\times2+k=0\)

\(\Rightarrow\) -15 - 16 + k = 0

\(\Rightarrow\) k = 15+16 = 31

Correct option is  C) 31



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