Question

The graph below shows a proportional relationship between yyy and xxx.

What is the constant of proportionality, \dfrac{y}{x}
x
y
​
start fraction, y, divided by, x, end fraction ?

Answer 1

3.5

Explanation:

Answer 2

`k = 40`

Explanation:

Given

The attached graph

Required

Calculate the constant of proportionality.

Represent the required constant with k.

Such that:

`k = (y)/(x)`

Pick any two corresponding values of x and y

`(x,y) = (1,40)`

This means that:

`x = 1\ and\ y = 40`

`k = (y)/(x)` becomes

`k = (40)/(1)`

`k = 40`