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2. for each interval decide if the average rate of change is positive or negative a.from 1940b.from 1950 to 1970c.from 1930 to 19703. In which decade (10 year interval) did the population grow faster? Explain how you know.

2 For Each Interval Decide If The Average Rate Of Change Is Positive Or Negative Afrom 1940bfrom 1950 To 1970cfrom 1930 To 19703 In Which Decade 10 Year Interva class=

Sagot :

To find the average rate of change of the population between 1930 and 1950, use the following formula.

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

Where (x1,y1) and (x2,y2) are the coordinates for the interval in which tha rate is calculated.

In this case the coordinates will be (1930, 40) and (1950, 50).

[tex]m=\frac{50-40}{1950-1930}=\frac{10}{20}=\frac{1}{2}[/tex]

The average rate of change is 1/2.

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