Question

已知函数f(x)={x+4,x≤0 x方-2x,04}(1) 求f(f(f(5))的值 (2)画出函数的图像

Answer 1

(1)f(5)=-5+2=-3

f(f(5))=f(-3)=-3+4=1

f(f(f(5))=f(1)=1^2-1*2=-1

(2)