Please help and show work

Graph the equationy= x+3[tex]y = x + 3[/tex]

What is the sum of these mixed numbers 4 2/3+ 3 1/9

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