I need help to draw those graph !

On x and y axes, draw ATC, AVC and MC curves and four alternative demand curves that the perfectly competitive firm might face.

a) Draw D1 such that the firm makes a profit.

b) Draw D2 such that the firm breaks even (profit=0).

c) Draw D3 such that the firm is at its shut down point.

d) Draw D4 such that the firm would shut down rather than produce.