select the equations that show a proportional relationship between x and y. y = x y = 7x

Explanation:

Step1: Recall proportional - relationship formula

A proportional relationship between $x$ and $y$ is of the form $y = kx$, where $k$ is a non - zero constant.

Step2: Analyze $y = x$

Here, $k = 1$, so it is a proportional relationship.

Step3: Analyze $y = 7x$

Here, $k = 7$, so it is a proportional relationship.

Answer:

$y = x$, $y = 7x$ are the equations that show a proportional relationship between $x$ and $y$.