# A function of the form f (x) = mx +b is commonly called

A function of the form f (x) = mx +b is commonly called
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Coleman Ali
$f\left(x\right)=mx+b\phantom{\rule{0ex}{0ex}}f\left({x}_{1}\right)=m{x}_{1}+b\phantom{\rule{0ex}{0ex}}f\left({x}_{2}\right)=m{x}_{2}+b\phantom{\rule{0ex}{0ex}}f\left[\begin{array}{c}x1\\ x2\end{array}\right]=\left[\begin{array}{c}m×x1\\ m×x2\end{array}\right]+\left[\begin{array}{c}b×1\\ b×1\end{array}\right]\phantom{\rule{0ex}{0ex}}f\left[\begin{array}{c}x1\\ x2\end{array}\right]=m×\left[\begin{array}{c}x1\\ x2\end{array}\right]+b×\left[\begin{array}{c}1\\ 1\end{array}\right]$
where m is a scalar and b is a scalar.Hence this transformation is scalar.