Answer: The two functions are
f(x) = sqrt(64x^2+64)
g(x) = -sqrt(64x^2+64)
Graphing these together forms a hyperbola
To get these two functions, we need to solve for y
y^2 - 64x^2 = 64
y^2 = 64x^2 + 64
y = sqrt(64x^2 + 64) or y = -sqrt(64x^2 + 64)
The last line is similar to how x^2 = 9 has two solutions (x = plus or minus 3)
