3y - x -14 = 0
3x + y + 1 = 0
3y + x + 1 = 0
3y + x + 14 = 0
Correct answer is D
3x−y+11=0⟹y=3x+11
Gradient=3
Gradient of perpendicular line = −13
∴
3(y + 5) = 1 - x
3y + x + 15 - 1 = 3y + x + 14 = 0
Rationalize; \frac{1}{\sqrt{2 + 1}}...
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