The Maths Prof: Sketch & Find Max/Min Values of Quadratics

In this lesson I show you how to find the axes crossing points (i.e where the graph intercepts the x and y axes), how to sketch parabolas and also determine the coordinates of a vertex (aka stationary point/turning point) using two different methods: line of symmetry 03:21 and completing the square 06:26. General tips for sketching 09:26. This lesson is suitable for extended GCSE/IGCSE and AS/A Level Maths. Other lessons that you may find useful related to this topic can be found below 👇 🌟Line & Quadratic Curve Intersections https://www.youtube.com/watch?v=qz490... 🌟The Discriminant (b²-4ac) https://www.youtube.com/watch?v=KpNdm... 🌟Sketch & Find Max/Min Values of Quadratics https://www.youtube.com/watch?v=RvbPq... 🌟Solving Quadratic Inequalities https://www.youtube.com/watch?v=kklPn... 🌟Completing the Square https://www.youtube.com/watch?v=2mexE... 🌟Completing the Square to Solve Quadratic Equations https://www.youtube.com/watch?v=paLSj... 🌟Solving Quadratic Equations by Factorising https://www.youtube.com/watch?v=BmkV-... Solve Quadratic Equations using Quadratic Formula https://www.youtube.com/watch?v=vsPJk... 🌟Solve Simultaneous Equations (Linear & Quadratic) https://www.youtube.com/watch?v=6NCu9... I hope that you find the lesson useful. Subscribe to my YouTube channel to stay up to date with new uploads and follow me on Instagram @themathsprof for more maths! :-)