Question

I don’t know how to solve this exactly we just started to learn this in school and this is what I am struggling with

Answer 1

Given that the x and y variables are proportional, then they satisfy the next relationship:

y = kx

where k is some constant.

Isolating k, we get:

k = y/x

Computing y/x with the values of the table:

$\begin{gathered} k=\frac{y}{x} \\ k=\frac{6}{2}=\frac{9}{3}=\frac{15}{5}=\frac{18}{6}=3 \end{gathered}$

Therefore, the equation that relates x and y is:

y = 3x