Graphing Quadratic Inequalities (and Systems)

How to graph a quadratic inequality. Notes about dotted vs solid, shading and systems of quadratics.

[marin]

Ok so I just want to point out one thing that annoyed me throughout this video. YOU DON"T EXPLAIN ANYTHING! If you get it then congratulations I can honestly say I am really happy for you but there are people just like me that are just learning to do this and all you do is just jump to another step without even minding to tell us how you got there. For example: How did you solve in vertex forms and how did you graph so fast!? like are you even serious!

[sulfuricdude]

Little heads up to anyone watching this video when he does right 1 and up 1^2 power, basically he's plunging x values near the vertex. I got pretty confused with this part and I'm pretty sure Mari N did too.

[DobynsBennettMath]

@lola jaced
That's the problem of watching videos to learn math. I can't adjust my instruction to you because I don't know what your frustrations are. I'm sorry this frustrated you.

I used "Completing the square" to go from standard form -> vertex form (and thought I did a decent job of explaining the process). Graphing from vertex form is EASY so it should go fast. lol You plot the vertex and then find more points on the graph.