It is known that the image of F (x) = 2 ^ x, F1 (x), F2 (x), F3 (x), F4 (x) and the image of F (x) are symmetric about the X axis, Y axis, origin and line y = x respectively Try to write four function analytic expressions respectively

It is known that the image of F (x) = 2 ^ x, F1 (x), F2 (x), F3 (x), F4 (x) and the image of F (x) are symmetric about the X axis, Y axis, origin and line y = x respectively Try to write four function analytic expressions respectively

f1(x)=-2^x,
f2(x)=2^(-x),
f3(x)=-2^(-x),
F4 (x) = logarithm of X with base 2, i.e. log2 (below) x