Tell Whether a Linear Model or a Quadratic Model Is

question 3

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.
-The amount of water in a pool as it is being filled, as a function of time.

• A) quadratic; negative
• B) quadratic; positive
• C) linear; negative
• D) linear; positive

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