Question

Theresa bought 2 pineapples for $6 what’s the constant of proportionality

Answer 1

$\bf \qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array}\\\\ -------------------------------\\\\ \stackrel{\textit{\underline{c}osts of pineapples is proportional to the \underline{a}mount of pineapples}}{c=ka} \\\\\\ \textit{we also know that } \begin{cases} a=2\\ c=6 \end{cases}\implies 6=k2\implies \cfrac{6}{2}=k\implies 3=k$

Answer 2

The answer is $3

Explanation:
In order for it to be proportional, they need to have an equal amount.

$6 / 2 = $3