Moving from left to right:

The curve passes through quadrant 1.

The curve trends up sharply.

The curve passes through the following points:

(0 comma 6)

(1 comma 9.0)

Question

The graph gives the estimated population $y$ , in thousands, of a town $x$ years since $2003$ , where $0 \leq x \leq 5$ . Which of the following best describes the increase in the estimated population from $x equals 0$ to $x equals 1$ ?

Accepted Answer

Choice B is correct. On the graph shown, the y -axis represents estimated population, in thousands. The graph shows that when x = 0 , the y -coordinate is 6 . Therefore, the estimated population at x = 0 is 6 thousand. The graph also shows that when x = 1 , the y -coordinate is 9 . Therefore, the estimated population at x = 1 is 9 thousand. Dividing 9 thousand by 6 thousand yields 1.5 ; therefore, 9 thousand is 1.5 times 6 thousand. It follows that the estimated population at x = 1 is 1.5 times the estimated population at x = 0 . Choice A is incorrect and may result from conceptual or calculation errors. Choice C is incorrect and may result from conceptual or calculation errors. Choice D is incorrect and may result from conceptual or calculation errors.

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