y^2+0.1*x^2=5

[y+12]^2+0.1*x^2=1.6

x=-(0.1*y^2)-2,-3.696<y<3.696

x=0.1*y^2+2,-3.696<y<3.696

x=(y+28)/4,-12<y<0

-x=(y+28)/4,-12<y<0

y=sqrt(-(10*x)-20),x>-3.3666

y=-sqrt(-(10*x)-20),x>-3.3666

-20<x<20,-5<y<25

x=6,3<y<12

x=-6,3<y<12

y=3,-6<x<6

y=12,-6<x<6

y=-5,-20<x<20

x=20,-5<y<25

x=-20,-5<y<25

y=25,-20<x<20

[[x-30]^2+[y-20]^2]<25

y=0.1*[x-30]^2+22,26.303<x<33.696

y=-(0.1*[x-30]^2)+18,26.303<x<33.696

y=20,25<x<35

x=0.08*[y-20]^2+28,15.052<y<25

[x^2+y^2]<25

y=3.75*sqrt([x-1.5]),4<x<23

y=-(0.0002*[x+5]^2*[x-5]^2*[x-3]^2*[x+3]^2*[x]^2)-2,-3.8<x<3.8

y=-(0.0002*[x+5]^2*[x-5]^2*[x-3]^2*[x+3]^2*[x]^2)+2,-5.2<x<5.2

Graph of the formula

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