What is the square root of -1?
a. -i
b. i
c. -1
d. 1

It is the option B that is 'i'.

B. i

Step-by-step explanation:

Given :

The square root of -1 written as

When there is a negative number in the square root it is called as an imaginary number.

And imaginary number is denoted by 'i'

and the value for i is

for an example

Hence the answer is 'i'.

dont trust me im no expert these losers made me fail a test bro this sucks

step-by-step explanation:

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).