When y varies inversely with x, we have the follow equation:
y = kx
k = constant of variation
To find k, plugin the values for y = -4 and x = 7 and then solve for k
y = kx -4 = k7 -4 / 7 = k7/7 -4 / 7 = k k = -4 / 7 Now that we found k, we write the equation that relates the variables like below [tex]y = -\frac{4}{7}x[/tex]
