Horizontal Tangents. Find the points where the tangent line is horizontal. We learn how to find the points where the tangent line to is horizontal through various examples. We learn how to find the horizontal tangents of a function. We find the points where the tangent line to the function is horizontal. We indicate if no horizontal tangent line exists. We first find the derivative of the function and then set that derivative equal to 0. We then solve for x. This gives us when the slope of the tangent line is equal to 0, which means this is where the tangent line is horizontal. We then plug our x-value into our original function to find the corresponding y-value. This gives us the coordinate points where the tangent line to the function is horizontal. If the function does not have a horizontal tangent line, we then indicate that no horizontal tangent line exists. We use common derivative properties to solve the derivative of the function. This is a great introduction into derivatives. This is under the topic of Applications of Differentiation with this free online math video lesson. #horizontaltangents #findthehorizontaltangent #tangentlines #derivatives #findthederivative #calculus #calculushelp #minutemath #minutemathhelp #onlinemathlessons Every Month we have a new GIVEAWAY that is FREE to Enter. See link below for details. You can enter Every Month! https://www.minutemathtutor.com/current-giveaway Subscribe to our YouTube Channel: https://www.youtube.com/user/MinuteMath?sub_confirmation=1 Visit our website for links to all of our videos: https://www.MinuteMathTutor.com Need a Math Tutor? https://www.minutemathtutor.com/tutor Visit our STEM Store for all your Math and Science Gear: https://minutemathshop.com/ Join our Discord Server for Math Talk and Math Help! https://discord.gg/4TrHnzJ Great Educational Resources Here: https://www.minutemathtutor.com/resources Nominate a Great Teacher Here: https://www.minutemathtutor.com/nominate-your-teacher Have a Math Lesson you would like to add to our community of videos? Click here: https://www.minutemathtutor.com/video-submissions Subscribe to our other Life and Finance/Business YouTube Channel: https://www.youtube.com/channel/UCkpi6LiBAMAW0gUtRJfEL3Q?sub_confirmation=1. Consider supporting us on Patreon... https://www.patreon.com/MinuteMath Follow us for... Tweets: https://twitter.com/minutemath Instagram: https://www.instagram.com/minutemath/ Facebook: https://www.facebook.com/MinuteMath/ Instagram Shop: https://www.instagram.com/minutemathshop/ Facebook Shop: https://www.facebook.com/MinuteMathShop/ Business and Personal Instagram: https://www.instagram.com/gannonforpresident/ ... https://www.youtube.com/watch?v=ED8J30yg5GY

Simplify 4x/(x+3)-4x/(x+6). We learn how to simplify 4x/(x+3)-4x/(x+6) in this free online math video lesson on Adding and Subtracting Rational Expressions. This video explains how to add a rational expression and how to subtract a rational expression and simplify each expression. We have to find a common denominator before we add or subtract the rational expression 4x/(x+3)-4x/(x+6). #addingrationalexpressions #subtractingrationalexpressions #minutemath Every Month we have a new GIVEAWAY that is FREE to Enter. See link below for details. You can enter Every Month! https://www.minutemathtutor.com/current-giveaway Visit our website for links to all of our videos: https://www.MinuteMathTutor.com Visit our STEM Store for all your Math and Science Gear: https://minutemathshop.com/ Get Free Trials to Amazon Prime and others here: https://www.minutemathtutor.com/amazon-partnership Nominate a Great Teacher Here: https://www.minutemathtutor.com/nominate-your-teacher Have Math Lesson you would like to add to our community of videos? Click here: https://www.minutemathtutor.com/video-submissions Check out our Finance, Business and Life YouTube Channel: https://www.youtube.com/gannonforpresident Consider supporting us on Patreon... https://www.patreon.com/MinuteMath Follow us for... Tweets: https://twitter.com/minutemath Instagram: https://www.instagram.com/minutemath/ Facebook: https://www.facebook.com/MinuteMath/ Instagram Shop: https://www.instagram.com/minutemathshop/ Facebook Shop: https://www.facebook.com/MinuteMathShop/ Business and Personal Instagram: https://www.instagram.com/gannonforpresident/ ... https://www.youtube.com/watch?v=7u3wC52nbmE