Geometry math question no guessing and show work you

Whats the name of the vertical axis

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be able to prepare using the sauce?

Is the point (0, 8) on the x-axis or y-axis? how do you know?