(i)[2]
Explain why plotting $\ln y$ against $\ln x$ gives a straight line.
(ii)[4]
Determine the values of $n$ and $A$, with answers accurate to 2 decimal places.
Mathematics 9709 · AS & A Level · Logarithmic and exponential functions
Logarithmic and exponential functions — practice question
The variables $x$ and $y$ are linked by the equation $y^n = Ax^3$, with $n$ and $A$ constant. It is stated that $y = 2.58$ when $x = 1.20$, and $y = 9.49$ when $x = 2.51$.