Explanation:
the picture is so fuzzy, I can hardly read the details.
I suspect the orange line is
f(x) = 6^x
the black line is
g(x) = 6^x + k⁵
to find k we simply create
(g - f)(x) = 6^x + k⁵ - 6^x = k⁵
as we can see, the difference (up/down distance) between both functions is a constant k⁵.
the best and most reliably we can see and calculate that difference at x = 0 :
2
k⁵ = 2
![k = \sqrt[5]{2}](https://img.qammunity.org/2024/formulas/mathematics/high-school/kdgwe0pnx06f0qyudvjm3cv00hdnqlinw2.png)
which is 1.148698355...
but I see, I might have misunderstood the 5 of the coordinate axis as exponent of k.
so, the function might be
g(x) = 6^x + k
and then
the difference is simply k, and
k = 2