Determine if the graph shows two quantities that vary directly. if possible, determine the constant of proportionality. explain your reasoning.

The graph not shows two quantities that vary directly

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Observing the graph

The line not passes through the origin

therefore

The graph not shows two quantities that vary directly

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.