fun with functions

feel free to fill in the missing curves or
suggest better fits for already solved ones

y=const y=x^2 y=x^3 y=|x| cos(x) y=tanh(|x|-7) x^2+4y^2=1
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y=|2x| |x|=exp(-y).*sin(exp(y)+1.5π)+1/8
y ∈ (2,3)
solved by C. Adwani
(x,y)=( (t+√3*sin(t))/2; |√3*t-sin(t)|/2 )
t ∈ 10π(0.02,1)
solved by C. Adwani
x^2+y^2=exp(-x/5)
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|x|=y.*(1-y).^0.9+0.25
y ∈ (-0.21,1)
solved by C. Adwani
y=ln((x/2)^4+1)
solved by C. Adwani
y=x^8
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