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Download the Show Notes: http://www.mindset.co.za/learn/sites/files/LXL2013/LXL_Gr12Mathematics_15_Calculus%20III_20May.pdf In this live Grade 12 Maths show we continue to look at Calculus III. In this lesson we look at concavity as well as discuss cubic graphs. Visit the Learn Xtra Website: http://www.learnxtra.co.za View the Learn Xtra Live Schedule: http://www.learnxtra.co.za/live Join us on Facebook: http://www.facebook.com/learnxtra Follow us on Twitter: http://twitter.com/learnxtra ( E00198099 )