Question

04:Pretest 4 Graphs and Functions10Find the constant of variation k for the direct variation,X1010114

Answer 1

Since constant of variation k is calculated by dividing y-coordinate and x-coordinate .

From the given table we can see that

`f(x)=-1\text{ when x=2}`

So

`\begin{gathered} k=(-1)/(2) \\ =-0.5 \end{gathered}`

So constant of variation k is -0.5