Answer:
B) the initial amount of the account
Step-by-step explanation:
When x=0, no days have passed, so the y-intercept is there to see how much money you started with in the account.
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the answer is 4.2 and i check if the answer is correct
and it was correct
How to get answer by Mimiwhatsup:

The solution is n= <u>+</u> 4i/√11
Step-by-step explanation:
step 1: 10n^2+n^2+16=0
step 2: 11n^2+16=0
step 3: 11n^2= -16
step 4: n^2= -16/11
step 5: taking square root on both sides,
n= √(-16)/√11 (square root of a negative number is a <u>complex term</u> 'i')
n= <u>+</u> 4i/√11