Correct? ...Which quadratic regression equation best fits the data set?
1 answer:
1) The second selection looks correct, as it is the only one with a minimum at a positive x value, and a y-intercept more than 109.
2) Your choice cannot be correct, as it corresponds to a function with a minimum near x = 1.278/(2*0.056) ≈ 11.4. The function is obviously decreasing at that point, so is not a minimum there. My calculator shows the 4th selection is best.
2) Your choice cannot be correct, as it corresponds to a function with a minimum near x = 1.278/(2*0.056) ≈ 11.4. The function is obviously decreasing at that point, so is not a minimum there. My calculator shows the 4th selection is best.
You might be interested in
Use an app called Socratic, take a photo of the questions you're stuck on, then it will help you in stages and show you the answer.
This app gives you *instant* homework answers, all subjects Get it: https://socratic.org/a/p04dj0084n
This app gives you *instant* homework answers, all subjects Get it: https://socratic.org/a/p04dj0084n