Tell Whether a Linear Model or a Quadratic Model Is

question 500

Multiple Choice

Tell whether a linear model or a quadratic model is appropriate for the data. If linear, tell whether the slope
positive or negative. If quadratic, decide whether the leading coefficient a of x² should be positive or negative.
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• A) quadratic; positive
• B) linear; positive
• C) linear; negative
• D) quadratic; negative

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Definitions:

Poorest 20 Percent

The segment of the population with the lowest income, representing the bottom quintile in the distribution of income or wealth.

World Income

The total income generated by individuals and entities across the globe.

Per Capita Income

The average income earned per person in a given area in a specified year.