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What is the quadratic regression equation that fits these data?

What is the quadratic regression equation that fits these data?-example-1
User Maxdangelo
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1 Answer

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11 votes

9514 1404 393

Answer:

D. y = -0.32x² -1.26x +15.81

Explanation:

This is one of those multiple-choice questions where you only need a vague idea of what the answer is supposed to look like.

In this case the answer must be a quadratic equation with a negative leading coefficient. (The parabola opens downward.)

The only answer choice that is a 2nd degree polynomial with a negative leading coefficient is choice D.

__

A: linear equation

B: exponential equation

C: quadratic that opens upward (positive leading coefficient)

D: quadratic that opens downward -- the answer you're looking for

User SnowYetis
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