Question

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

Answer 1

Answer:

$k = 40$

Step-by-step explanation:

Given

The attached graph

Required

Calculate the constant of proportionality.

Represent the required constant with k.

Such that:

$k = \dfrac{y}{x}$

Pick any two corresponding values of x and y

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

This means that:

$x = 1\ and\ y = 40$

$k = \dfrac{y}{x}$ becomes

$k = \frac{40}{1}$

$k = 40$

Answer 2

Answer:

3.5

Step-by-step explanation: