Multiple Choice Question (MCQ)
If f(x) = 3x1, n represents the slope of the line with the equation y = f^{1}(x), and p represents the slope of a line that is perpendicular to the line with the equation y=f(x), then np=

×
9

✓
\dfrac{1}{9}

×
\dfrac{1}{9}

×
9

×
It cannot be determined from the information given.