For regions where f ''(x) is positive, the function is concave up; where f ''(x) is negative the function is concave down. So, looking at the graph of f '(x), wherever slope is positive, you've got a positive second derivative and the function is concave up.
U-Meleni was a part of a group of Artists conducting workshops on spoken word and creative writing showing how it can be used to empower and create change. U-Meleni then travelled to ZIMBABWE for three weeks ( Aug 13-Sept 2, 2006) to spend time with family and friends.
SELEâ²NE (SelÃªnÃª), also called Mene, or Latin Luna, was the goddess of the moon, or the moon personified into a divine being. She is called a daughter of Hyperion and Theia, and accordingly a sister of Helios and Eos (Hes. Theog. 371, &c.; Apollod. i. 2. Â§ 2; Schol. ad Pind.