AnswersAlgebra 2 - Semester 1 PathwaysRegression Models

Regression Models Answers

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f(x) = [___]([___])x

Answer:

9974.73, 1.05

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A professor uses a video camera to record the motion of an object falling from a height of 250 meters. The function f(x) = –5x2 + 250 can be used to represent the approximate height of the object off the ground after x seconds. Which is the best estimate for the amount of time elapsed when the object is 120 meters off the ground?

A
4 seconds
B
5 seconds
C
6 seconds
D
7 seconds
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Which statements are true? Check all that apply.

A
The data is best represented by an exponential model.
B
The data is best represented by a quadratic model.
C
If the price is $5 per unit, the expected profit is approximately $4,686.
D
If the price is $80 per unit, the expected profit is negative.
E
As the price per unit increases, the profit increases indefinitely.
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Which statements are true? Check all that apply.

A
The function that best represents the data is f(x) = 24,512(0.755)x.
B
The function that best represents the data is f(x) = 554x2 – 5,439x + 24,600.
C
The function decreases indefinitely.
D
It is reasonable to interpolate to the value of the car at 4.5 years.
E
It is reasonable to extrapolate to 40 years.
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Question text not available

Answer:

10346.0

84675

Question text not available

Answer:

1.1

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Question text not available

Answer not available
84686

Question text not available

Answer:

-16

84687

Question text not available

Answer:

81

84688

[___] feet

Answer:

19

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