Please help me out, Thank you!​

Which graph represents the following piecewise defined function?

Answer this question! 30 points and brainliest! only if you know the answer.

Which question is not a good survey question? a.don't you agree that the financial crisis is essentially over? 63on average, how many hours do you sleep per day? c. what is your opinion of educational funding this year? d.are you happy with the availability of electronic products in your state?