Question

f(x)= sqrt of 2x -8
whats x

Answer 1

incomplete

Answer 2

You can solve for \(x\).

Answer 3

For example,\[f(x) = \sqrt{x - 8} \]Let \(f(x) = y\).\[ y = \sqrt{x - 8}\]\[y^2 = x - 8 \]\[ y^2 + 8 = x\]

Answer 4

x is a variable?