Calculus AB/BC – 5.3 Determining Intervals on Which a Function is Increasing or Decreasing

array(10) { [0]=> object(stdClass)#4887 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "REWoDT08SR4" ["related_video_title"]=> string(94) "Calculus AB/BC – 5.4 Using the First Derivative Test to Determine Relative Local Extrema" ["posted_time"]=> string(21) "4 года назад" ["channelName"]=> string(12) "The Algebros" } [1]=> object(stdClass)#4860 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "CutK-XSnJew" ["related_video_title"]=> string(80) "Calculus AB/BC – 5.6 Determining Concavity of Functions over Their Domains" ["posted_time"]=> string(21) "4 года назад" ["channelName"]=> string(12) "The Algebros" } [2]=> object(stdClass)#4885 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "grpnc9ME4fU" ["related_video_title"]=> string(36) "How to Find the Domain of a Function" ["posted_time"]=> string(19) "1 год назад" ["channelName"]=> string(12) "GoTutor Math" } [3]=> object(stdClass)#4892 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "ZIqfI2QVLRI" ["related_video_title"]=> string(98) "Calculus AB/BC – 5.2 Extreme Value Theorem, Global Versus Local Extrema, and Critical Points" ["posted_time"]=> string(21) "4 года назад" ["channelName"]=> string(12) "The Algebros" } [4]=> object(stdClass)#4871 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "rp_unAZHcVo" ["related_video_title"]=> string(115) "Шокирующее заявление президента / Выставлен резкий ультиматум" ["posted_time"]=> string(24) "13 часов назад" ["channelName"]=> string(10) "NEXTA Live" } [5]=> object(stdClass)#4889 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "9PxBSOO-8mc" ["related_video_title"]=> string(176) "ЛИПСИЦ: Рубль вышел из-под контроля. Все хотят доллар по 100. Власть России любит идиотов. Инфляция" ["posted_time"]=> string(21) "4 часа назад" ["channelName"]=> string(29) "Ходорковский LIVE" } [6]=> object(stdClass)#4884 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "95Mkwbsk2HQ" ["related_video_title"]=> string(79) "Можно ли поменять родину так быстро? / вДудь" ["posted_time"]=> string(19) "2 дня назад" ["channelName"]=> string(10) "вДудь" } [7]=> object(stdClass)#4894 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "-W4d0qFzyQY" ["related_video_title"]=> string(61) "❖ Finding Intervals of Increase/Decrease Local Max/Mins ❖" ["posted_time"]=> string(20) "16 лет назад" ["channelName"]=> string(9) "Patrick J" } [8]=> object(stdClass)#4870 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "w0l3bz6fHEE" ["related_video_title"]=> string(35) "Задача века решена!" ["posted_time"]=> string(27) "9 месяцев назад" ["channelName"]=> string(36) "Математика и фокусы" } [9]=> object(stdClass)#4888 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "Eiv7ofQ_TeU" ["related_video_title"]=> string(78) "Calculus AB/BC – 5.8 Sketching Graphs of Functions and Their Derivatives" ["posted_time"]=> string(21) "4 года назад" ["channelName"]=> string(12) "The Algebros" } }