It is thought that prehistoric Indians did not take their besttools, pottery, and household items when they visited higherelevations for their summer camps. It is hypothesized thatarchaeological sites tend to lose their cultural identity andspecific cultural affiliation as the elevation of the siteincreases. Let x be the elevation (in thousands of feet) for anarchaeological site in the southwestern United States. Let y be thepercentage of unidentified artifacts (no specific culturalaffiliation) at a given elevation. Suppose that the following datawere obtained for a collection of archaeological sites in NewMexico: x 5.25 5.75 6.25 6.75 7.75 y 11 18 28 36 49
Find x
