HELP PLEASE

find the domain of f and write your answer in interval notation

(-infinity, 9/8]

Explanation:

Domain is defined as all the possible x-values of a function.

Lets test some negative numbers.

OK! That means all negative numbers should work!

What about 0?

0 works..

Now, onto positive numbers?

=> imaginary

Check the last value that works. It can only be 9/8 because that's where the square root becomes 0, which is the last value before you head into the imaginary numbers..

(-infinity, 9/8]

c. the net deposit amount.

do you need with anything?