Question

What is the value of k? The relationship between x and y shown in the table may be expressed as = kx, where k is the constant of proportionality. A) х у -3 2.25 -1 0.75 B 2 -1.5 5 3 -3.75 a -4/3 b -3/4 c 3/4 d 4/3

Answer 1

The relation is:

$y=kx$

so we solve for k is:

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

So the constant ofproporcionality is:

$\begin{gathered} k=\frac{2.25}{-3} \\ k=-0.75=-\frac{3}{4} \end{gathered}$

So is B