I need help on part 3 please.

Vapor pressure measurements at several different temperatures are shown for mercury. Determine graphically the molar heat of vaporization. Part 1: Complete the following table by converting the temperatures to kelvin and the pressures to pascal. Part 2: Complete the following chart. Report the inverse temperature in scientific notation. Part 3 out of 4 Using a spreadsheet (such as Microsoft Excel 8, Numbers 8, or Google Sheets 8 ), plot the data and report the siope of the regression line. slope of regression line =