1 Glycerin, an ingredient in some toothpastes, can interfere with strengthening your teeth. 2  Glycerin layers your tooth in a sticky film that keeps the minerals in your saliva from interacting with your enamel to strengthen it.. Chew sugar-free gum. The gum promotes saliva production, without the sugar that makes weakened enamel worse. Gum with the natural sweetener xylitol doesn't feed the bacteria that weakens your enamel, and xylitol has actually been shown to strengthen tooth enamel.
Demand functions for a straight-line demand curve take the following form: Quantity = a - (b x Price). where a and b are constants that must be determined for each particular demand curve. When price changes, the result is a change in quantity demanded as one moves along the demand curve.
The demand curve is a straight line which has the property if Y=mX+C(equation of a straight line) and the movement of this line if downward. So the each time a product is demanded more that means that the price of the product is reduced. Any shift in the demand curve causes change in the quantity demanded in the market where it is sold. Say if the demand curve shifts towards the right then the quantity demanded will be more and if the curve shifts towards the left then less quantity will be asked by the customer in the market.