Your answer is -12, how do I now this?? look at the image!
Isolating the variable 'a' in the expression, we have:

So the correct option is B.
X = cylinder volume<br />350/717.25 = .4879749<br />so .4879749 =355/X<br />4879749*X =355<br />355/4879749 = X<br />X = 727.49643<br />727.49643 = cylinder volume
Your welcome
Answer:
y = mx+b
m represents the slope and b represents the y-intercept
since you have the slope and a point you can find here the line crosses the y-axis
y = -1/2x + b
the point (-14, 6) can be substituted into the eq for x and y
(6) = -1/2(-14)+b
6 = 7 +b (subtract 7 from both sides)
-1 = b
The line crosses the y-axis at -1