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Deffense [45]
3 years ago
5

What is the best estimate for the number of people in line at 7.A.M

Mathematics
1 answer:
Keith_Richards [23]3 years ago
5 0

We have been given the equation

y=-5.131x^2+31.821x-3.333

It represents the number of people standing to catch a commuter train x hours after 5 A.M.

Now, in order to find the number of people in line at 7 a.m. , we need to substitute x= 2 in the above equation.

y(2)=-5.131(2)^2+31.821(2x)-3.333\\y(2)= 39.785 \approx 40

Therefore, the number of people in the line at 7 a.m. is 40

D id the correct option.

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Step-by-step explanation:

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The diagram is shown in the attachment.

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Answer:

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