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3 years ago

15

The equation y=-5.131x^2 31.821x-3.333 approximates the number of people standing in line to catch commuter train x hours after

5am what is the best estimate for the number of people in line at 9am

1 answer:

Oliga [24]3 years ago

5 0

9am is 4 hours after 5am, so x=4
Substitute x=4 into the equation
y=-5.131(4)^2 31.821(4)-3.333=ans

the sign before 31.821x is missing

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