How to Graph Quadratic Inequalities! (explanation, steps, and example)
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- เผยแพร่เมื่อ 14 ก.ย. 2022
- #How do you graph quadratic inequalities? These are inequalities where your quadratic is greater than or less than y, not greater than or less than 0. For quadratic inequalities greater or less than 0, those are in another video (listed below).
This video shows you step by step how to graph a quadratic inequality, from finding the vertex to charting points to determining where it should be a solid or dotted line. I also show you how to determine where to shade your graph after you've drawn your parabola.
0:58 - Graphing the parabola
8:45 - How to determine whether the parabola should be solid or dashed/dotted
11:02 - How to figure out where to shade your graph
Here are some additional related and helpful videos:
How to Solve Quadratic Inequalities! (explanation and examples): • How to Solve Quadratic...
How to Graph Inequalities on a Number Line!: • How to Graph Inequalit...
Graphing Systems of Linear Inequalities!: • Graphing Systems of Li...
How to Solve Quadratic Inequalities! (explanation and examples): • How to Solve Quadratic...
Solving Inequalities with Variables on Both Sides: • Solving Inequalities w...
How to Factor Quadratic Equations! (leading coefficient is 1): • How to Use the Quadrat...
Factoring Negative Quadratic Equations: • Factoring Negative Qua...
Factoring Quadratic Equations with Coefficients: • Factoring Quadratic Eq...
How to Use the Quadratic Formula: • How to Use the Quadrat...
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I slept through the whole wekk of class. I have an exam in 30 min. Thanks so much
Glad I could help! 😄
@@YouCanLearnMathwithAlyssa just finished it. Was incredibly easy. I used your method and I believe I aced it
@@Freedom-denier That's awesome! 🥳
My weak concepts grewed and became stronger thank mam❤
Thank you so much! This was a whole lot better than how my teacher was teaching. He does it so fast, it's hard to keep up. When you teach it, you show the process thoroughly.
You’re very welcome - I’m so glad I was able to help! 😊
Thanks so much, I understood this topic very well now ❤
Thank you so much! I was extremely confused before this video and this is one of the topics that I really needed help with.
Like the way you explained and it labeled the steps and answered the possible questions that I and others would've asked.
Cheers!
Aw thank you so much! I’m so glad to hear it helped 😊
So clear thank you...former math teacher helping son..superb instruction
Thank you so much for the kind words - so glad I could help! 😊
You are amazing!!! Thank you soo much!!!
🤩
Thank you. Keep up the good work. Very straight forward and efficient explanations. Earned a subscription from me today.
Thank you so much! 😊. If there’s any specific math topic you’d like me to cover, please let me know
this was so perfect explained. i understand it, thank you!
Thanks so much for the kind words - it makes me feel so great to know I could help! 😊
Omg i was struggling all week with this stuff and you make it sooo simplee thanksss
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Thank you! You explained this perfectly. I finally understand!
Aw so glad I could help! 😊
great video. simple and clear
Aw thank you so much! 😊
This was a brilliant explanation. Thanks a TON.
Love from India.
Thank you so much - I’m so glad it helped! 😊 India is such a beautiful country - I really hope I get to visit it someday!
Never did quadratics but needed a lesson to help a friends kid for a test. You made it so simple.
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Love the gifs!
This helped so much thank you
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Thank you!!
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Thank you soo much 😄. This just saved my grade and my semester 🙌 😌
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Thank you so much
You’re very welcome! 😊. If there’s a math topic you need help with that I don’t have a video for yet, please let me know!
tyy soo muchh teacher now I think I have a chance to finish my tomorrow"s exam
So glad it helped - best wishes on your exam! 😄
@@YouCanLearnMathwithAlyssa thank you mrs alyssa
What is the b is odd number?
If the b is odd, then your axis of symmetry will be a fraction. For example, in x^2 + 3x + 2, -b/2a would be -3/2. So your axis of symmetry would be x = -3/2. You won’t have to do any steps differently in the problem, though I agree fractions do make some of the math more awkward. Hope that helps! 🙂
How to solve this
Y
I think there may be an x missing after the 9. If so, you can absolutely solve this problem using the steps in this video 😊. Here’s a quick summary: First graph the parabola. To do that, I recommend you use x = - b / 2a to find the axis of symmetry, where 9 is your b and 1 is your a. Once you have x, plug it into the equation to find the y and you have your vertex. Plug in a couple of values to the left and right of x to get some points to graph. Then look at the greater than/less than sign in the original equation to determine whether the parabola should be a solid or dashed line. Finally, pick a test point to determine where to shade. (For this kind of problem, I would definitely recommend watching the video since there’s a lot of graphing and visual parts to it 🙂- I just don’t feel like I’m explaining it as well in this limited space 😓)
Too much nonsense talk get to the point
you talk too much about nothing to do with math
Hahahaha 😂