1.

 If the line 3ax + 5y + a - 2 = 0 passes through the point ( 1, 4), then value of a is(A)  9(B)  7(C)  −9(D)  −7

Answer»

Correct option (A)

Explanation :

Since the line passes through ( 1, 4),

we have

3a(-1) + 5(4) + a - 2 = 0

-2a + 18 = 0

 Hence, a = 9 and the line is 27x + 5y + 7  = 0.



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