SOLUTION: The percent of children3 and 4 are enrolled in nursery school has decreased from 54.5% in 2007 to 52.4% in 2009. . A) find an equation for the line containing the given dat

Algebra ->  Graphs -> SOLUTION: The percent of children3 and 4 are enrolled in nursery school has decreased from 54.5% in 2007 to 52.4% in 2009. . A) find an equation for the line containing the given dat      Log On


   

Question 826587: The percent of children3 and 4 are enrolled in nursery school has decreased from 54.5% in 2007 to 52.4% in 2009.

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A) find an equation for the line containing the given data points. Let X represent the # of yrs after 2000 and Let Y represent the percent of children ages 3 and 4 who are enrolled in nursery school

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estimate the % of children ages 3 and 4 enrolled in nursery school in 2008 and in 2012
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x coordinates for years after year number 2000;
y coordinates for percent children.

The two ordered pairs, or points, are (7, 54.5) and (9, 52.4).

(1) Calculate slope.
m=%2852.4-54.5%29%2F%289-7%29; compute the value.

(2) Calculate the y intercept, best done using form y=mx%2Bb;
b=y-mx.
Substitute either point to compute b.

(3) Restate the equation using the values found for m and b.

(4) Now you can answer the question. Year 2008 means x=8. Year 2012 means x=12.