e^{x+k}

e^x

ln(x)

ln(x)-k

k = 1.8 (slider from -5 to 5, step 0.1)
f(x) = ℯ^(x)
g = Invert(f)
r(x) = x
p(x) = f(x + k)
q(x) = g(x) - k