Can someone pls help me with this question?

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 the chart is here

Aline passes through 3,7 and 6,9 what equation represents the line

Can someone, me with this.i really need with this