GCSE Maths Practice: graph-transformations

\( \begin{array}{l} \text{Describe the transformation from } y = f(x) \text{ to } y = -f(x). \end{array} \)

Choose one option:

\( \text{Translation 3 units down} \) \( \text{Reflection in x-axis} \) \( \text{No transformation} \)