Regression Models Answers
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The data in the table represents a company’s profit based on the number of items produced.
A
y = –1.026x2 + 1016.402x – 162075B
y = –1.036x2 + 1024.771x – 163710C
y = 298.214x – 66317.667D
y = 196.2x – 187102
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The quadratic regression graphed on the coordinate grid represents the height of a road surface x meters from the center of the road.
A
The height of the surface decreases from the center out to the sides of the road.B
The height of the surface increases, then decreases, from the center out to the sides of the road.C
The height of the surface increases from the center out to the sides of the road.D
The height of the surface remains the same the entire distance across the road.3
Company A: A 2-column table with 5 rows. The first column is labeled hours with entries 5, 12, 20, 29, 42. The second column is labeled earnings (dollar sign) with entries 340, 404, 460, 530, 630. Company B: A 2-column table with 5 rows. The first column is labeled hours with entries 4, 9, 20, 32, 39. The second column is labeled earnings (dollar sign) with entries 125, 234, 450, 668, 828.
A
Company A: Using linear regression models from both data sets, she determines that it pays about $14 more.B
Company A: Using quadratic regression models from both data sets, she determines that it pays about $5 more.C
Company B: Using linear regression models from both data sets, she determines that it pays about $10 more.D
Company B: Using exponential regression models from both data sets, she determines that it pays about $8 more.4
The table shows the value of an account x years after the account was opened.
A
$8,910B
$8,980C
$13,660D
$16,040Did you find these answers helpful?
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