Step-by-step explanation: When you are rounding to the nearest 10th it means that you are rounding to one decimal place. When doing this you will keep the first number after the decimal point if the second number is less than 5. You will round up to the next number when the second number is 5 or more. Since the number is 5.336, rounded to the nearest 10th is 5.3.
To find an inverse for any given function, which is of the form , always swap and in the equation and try to get the form . Now, swapping back and , we get the inverse function.