Help with this!? Please!

Which property is illustrated by the statement given below? raj raj.

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at __ link to graph: .

Solve the equation by completing the square. x^2+2x=17