Answer:
8.30256
Step-by-step explanation:
Step 1: Write out expression

Step 2: Use BPEMDAS to evaluate




= 8.30256
And we have our answer!
The second graph: y = 3
Domain: all real number
Range: y = 3
Let i = sqrt(-1) which is the conventional notation to set up an imaginary number
The idea is to break up the radicand, aka stuff under the square root, to simplify
sqrt(-8) = sqrt(-1*4*2)
sqrt(-8) = sqrt(-1)*sqrt(4)*sqrt(2)
sqrt(-8) = i*2*sqrt(2)
sqrt(-8) = 2i*sqrt(2)
<h3>Answer is choice A</h3>