At a restaurant you order a lunch that cost $6.50 and a beverage that cost $1.50. You leave a 20% tip, how much money did you leave as the tip

Aline passes through the points (5,4) and (2.1). part a.) what is the slope of the line that passes through these points? show work. part b.) what is the equation of the line that passes through these points. show work. part c.) where does the line intercept on the x& y axis? show work