Respuesta :
Answer:
r=0.2
Step-by-step explanation:
[tex]\left\begin{array}{ccc}x&y\\8&1.6\\15&3\\22&4.4\end{array}\right[/tex]
If y=rx
[tex]r=\frac{y}{x}[/tex]
When x=8, y=1.6
[tex]r=\frac{1.6}{8}=0.2[/tex]
When x=15, y=3
[tex]r=\frac{3}{15}=0.2[/tex]
When x=22, y=4.4
[tex]r=\frac{4.4}{22}=0.2[/tex]
Clearly, r=0.2.
However, one case is sufficient to find the value of r. THe three are done to help draw a definitive conclusion.
