Writing Equations for Parabolas
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- เผยแพร่เมื่อ 24 เม.ย. 2021
- Working with parabolas doesn't have to be difficult! In this video, I show you how to write an equation in vertex form for parabolas!
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This helped me a lot. I was stuck on my homework for more than 30mins until I saw this video. Thank you!!
This explanation makes me understand than my teacher taught me in the classroom
Outstanding!
Really understand that ..thankyou so much..
This is so helpful! I'm a visual learner, and it makes so much more sense than typical math lectures. Thank you!
Love you straight up❤
You know your doing something right when a straight man says he loves you
This is so much simpler than the quadratic formula 😅
you are literally so helpful tysmm
You understand how everyone learns, I understand everything you just taught me thank you gangyyy
Thanks man! you explained it better than I could've ever imagined.
Thank you so so so so much!! You explained it much better than my math teacher, I need help with my algebra homework.
This was so helpful! Thank you for this
I was confused at first, but listened and this actually helped, thanks
Your explanation is so easy to follow, thank you!
Thank you so much, I like your way of explaining.
EXCELLENT you know your stuff well prepared plus entertaining how you explain🔥
This was perfect. Thanks man.
Thank you freaking genius
perfect exactly what i needed
Very well explained , thank you😊
Excellent! ❤
Thank you so much!
Thanks so much for helping me although I'm not good in mathematics but this video really helped me understand how to form a parabolic equation ❤🙏
most of the time its called a quadratic equation jsyk its the same
Newbie Question, on the X axis why does the graph sheet show negative numbers to the left for each unit? I see -5 for 5 units to the left and -10 the last unit to the left. When you move the vertex to the left you add?
And the opposite for the right. You have positive numbers on the graph sheet to the right +5 and +10, yet when you move the vertex to the right you subtract. It’s a bit confusing to me.
Thank you for the video!
I think I understand your question...
It's all because the general equation for a parabola has x minus the shift to the right. So when we shift to the right it makes the equation look like it is subtracting from x. For example, shifting right 3 units would give us y=(x-3)^2. When we shift to the left, we still subtract but we subtract a negative... which is the same as adding a positive, so it looks like we are adding to x. For example, shifting left 3 units would give us y=(x- -3)^2 which is the same as y=(x+3)^2. Technically, you could keep the double negative in the equation and it wouldn't be mathematically wrong!
Shouldn't the last equation be like y=2(x-3)*-4?
Actually, having x-3 in parentheses will shift the parabola to the right. In order to shift it to the left, we would need x+3 in parentheses!
how did you find how much the parabola has been stretched or compressed
Compare the shape of the parabola to the shape of a basic parabola by looking at the pattern of the points. Starting at the vertex of the basic parabola, the next point over is 1 above. The next point over is 3 above. The next point over is 5 above…. etc. If your parabola doesn’t follow that pattern, then there is vertical stretch! Just figure out how far up the next point is and divide it by how far the next point would be up on a basic parabola!
@@numberninja this makes sense, thanks