Tangent Line Slope of the tangent at = MPL of a At Point a, draw the tangent line to a; the slope of this line is MPL at point a MPL curve intersects...

Tangent Line Slope of the tangent at = MPL of a At Point a, draw the tangent line to a; the slope of this line is MPL at point a MPL curve intersects APL at its max!!!!! ALWAYS!!!!!! If I tell you APL is decreasing what do you know for sure about MPL? If I tell you that the MPL is decreasing what do you know for sure about APL?