A stone step in a very old building has worn down over time. In 400 years, the step has worn down 1 centimeter. This situation can be modeled with the equation below.
Y=-1/400x+18
x variable represents
y variable represents

A stone step in a very old building has worn down over time In 400 years the step has worn down 1 centimeter This situation can be modeled with the equation bel class=