\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Is the height of children proportional to their age?
Age (years) \(\textcolor{colordef}{3}\) \(\textcolor{colordef}{6}\) \(\textcolor{colordef}{9}\)
Height (cm) \(\textcolor{colorprop}{90}\) \(\textcolor{colorprop}{120}\) \(\textcolor{colorprop}{150}\)