Answer:
Graph B
This is because of the vertical line test. Say you were to draw a vertical line that stretches through the whole graph. If this line you draw passes through more than two points of the same line/function/whatever b is, it is not a function.
So than you check this graph so you see that the radius has a length of 4 units
from what result that thet x^2 +y^2 =4
so the choice 3rd is right sure
Answer:
-5v + -3y + 4
the answer is V=3y/5 - 4/5