2 The diagram shows the graph of \(y = \mathrm { f } ( x )\). The graph passes through the point with coordinates \(( 0,2 )\).
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On separate diagrams sketch the graphs of the following functions, indicating clearly the point of intersection with the \(y\) axis.
- \(\quad y = - \mathrm { f } ( x )\)
- \(y = f ( 3 x )\)