f(x)=(x+3)^2-1
f(x)=√(x+6)-3
f(x)=|x-3|
f(x)=-(x-5)^2-1
f(x)=-√(x+4)
f(x)=√(x-3)-4
f(x)=-x^2+4
f(x)=-|x+3|+1
f(x)=|x|-2
