\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Dans ce tableau de proportionnalité,
\(\textcolor{colordef}{x}\) \(\textcolor{colordef}{2{,}5}\) \(\textcolor{colordef}{5}\) \(\textcolor{colordef}{7{,}5}\)
\(\textcolor{colorprop}{y}\) \(\textcolor{colorprop}{10}\) \(\textcolor{colorprop}{20}\) \(\textcolor{colorprop}{30}\)
calcule le coefficient de proportionnalité.