Question

On a piece of paper graph f(x) = 3x if x<3 2x if x>3 then determine which answer choice matches the graph you drew​

Answer 1

It's a combine function (Alike signum function)

Which is given by

`\\ \rm\Rrightarrow f(x)=\begin{cases}\sf 3x,x<3\\ \sf 2x,x>3\end{cases}`

Find some points

• (0,0)
• (1,3)
• (4,8)
• (2,6)

Graph attached

Red line is 2x and blue one is 3x