whats the gradient of the line joining the two points (0,1) and (2,7)

gradient = (y2 - y1)/(x2 - x1)

 here:

$${\mathtt{gradient}} = {\frac{\left({\mathtt{7}}{\mathtt{\,-\,}}{\mathtt{1}}\right)}{\left({\mathtt{2}}{\mathtt{\,\small\textbf+\,}}{\mathtt{0}}\right)}} \Rightarrow {\mathtt{gradient}} = {\mathtt{3}}$$

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