• Option 1:  Desmos - Excellent online calculator - easy to use.
• Option 2:  This is easy to use but has limited control over the table of values
• Option 3:  This has excellent tools, but may take some time to learn. 
• Option 4:  This graphing calculator resembles the commands on the TI84 graphing calculator.
• Option 5:  This graphing calculator can find intersections, max/mins, and intercepts

• You should use a TI-84 Graphing Calculator to Perform the Linear Regression. If needed, you can use this online regression tool.