If $y$y varies inversely with $x$x we write the equation:
$y=x^k$y=xk
$y=x+k$y=x+k
$y=kx$y=kx
$y=\frac{k}{x}$y=kx
Is the variation relating the distance between two locations on a map and the actual distance between the two locations an example of a direct variation or an inverse variation?
Is the variation relating the number of workers hired to build a house and the time required to build the house an example of a direct variation or an inverse variation?
For the following relationship, write an equation that uses $k$k as the constant of variation.