Question

Which represents the inverse of the function f(x) = 4x?
O h(x) = x + 4
• h(x) = X -4
h(x) ==x
4
h(x) =

Answer 1

Answer:

$let \: the \: inverse \: be \: m \\ {f}^{ - 1} (x) = m \\ \frac{1}{4x} = m \\ 4mx = 1 \\ x = \frac{1}{4m} \\ therefore : \\ {f}^{ - 1} (x) = \frac{1}{4x}$