sacha 7410 Report post Posted November 14, 2015 Susan's income follows, y= x^2 Sasha's income follows y=1/x On which day are their incomes exactly the same? Now, if you have the answer to that, you must answer me this..... Susan happiness is the tangent to the curve y=x^2 How happy is Susan on day 7? Get both right, be charming...... And you will enjoy 30 minutes with me for free! Only texts or phone call will be accepted. Put your thinking caps on....... Lol. Sacha 613-315-9969 1 Share this post Link to post Share on other sites