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Math five-point method to solve problems! Process+image.
respectively are

2x+π/3=0 → x=-π/6,y=0? That is, the point (-π/6,0)

2x+π/3=π/2 → x=π/ 12,y=2? That is, the point (π/12,2)

2x+π/3 = π→ x = π/3, and y = 0 is the point (π/3,0).

2x+π/3=3π/2? → x=7π/ 12, y=-2 is the point (7π/ 12, -2).

2x+π/3 = 2π→ x = 5π/6, and y = 0 is the point (5π/6,0).

As shown in the figure: