The equation y = –5.131x2 + 31.821x – 3.333 approximates the number of people standing in line to catch a commuter train x hours after 5 a.m.
What is the best estimate for the number of people in line at 8 a.m.?

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8 is apparently 3 hours after 5 right?

77
46
40
32

those are the choices.

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