Study the graph below.

coordinate plane with x-axis labeled as quantity a and the y-axis labeled as quantity b. graph contains a line that passes through the following points: (0, 0), (3, 4) and (6, 8).

describe the functional relationship between the two quantities in the graph.

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

In this problem we have a proportional relationship because the line passes through the origin (0,0)

Find the value of k

take the point (3,4)

A=3,B=4

substitute

The equation of the line is

first one is a: renaming a fraction. second one is c: de-c

step-by-step explanation:

my explanation is that these were the answers on edg : )