If anyone is still reading, I would like to explain how to move horizontally (h) If you wanted to move the curve 3 to the right, you would want to get the point (3,0), assuming you didn’t move the curve up or down You would have to get y to 0, starting from y = x^2 when x is 3. The way to get y back to 0 is to subtract the 3 back from x, so y would be 0. The final equation would be y = (x-3)^2

You're so fast bud, let me catch up, please!

Omg you guys this video almost helps completely understand vertex form and the inner workings of the parabola. So the vertex form is as follows, f(x)=a(x-h)^2+k This video shows you: -x^2 is the general form of the parabola starting from the epicenter of the graph -"a" reflects down if negative and up if positive. Also that a is the stretching and narrowing of the parabola. |a|>1= Wider and slower in growth, while |a|

this video is hard to understand :P

@mushyomens6885

4 жыл бұрын

Not really, I do understand where you're coming from tho, I'd recommend watching this video after you've learned almost everything there is about parabolas and graphing quadratics, this should be the very last watch imo. Once you know the basic vertex form equation and stuff, I'd say this video perfectly summarises and intuitively explains all that you would've previously mathematically learned.

@makennaj2645

4 жыл бұрын

Osimmac ya

@chhimi4025

3 жыл бұрын

@@mushyomens6885 your reply is 5 years too late

@samrenputh

3 жыл бұрын

It’s weird to think that that person that commented “it’s confusing” might be out of school by now🤯🤯🤯

@osimmac

3 жыл бұрын

@@samrenputh lul I am, also still confused about math but still learn it bc math is lit

LET ME HELP EVERYONE OUT! I was able to figure it out after messing around with graphing. It is all about INTERCEPTS. Do you know y=mx+b? "b" is the y intercept. y=x IS a linear equation. Just like y=mx+b. y=x equals y=x+0 Meaning the y intercept is zero. When you have y=x+5 this means the y intercept is 5. So when x=0 y=5 on the graph plane. If you didn't get the above, learn what y=mx+b is/means and what b is, it is the y intercept (learn what the y intercept is) Now for HORIZONTAL shifts. y=(x-3)^2 if you graph it you see that where it intersects the x axis is at positive 3. This is because positive 3 is the x intercept. Where x intercepts the x axis. You just make to make the equation equal zero. Another ex to get my point across y=(x-1)^2 Yep you guessed it, the x intercept is 1. That means this parabola starts on 1 instead of 0 for y=x^2 You are welcome, idk why the 82k people who watched this never mentioned the whole point of shifting is INTERCEPTS lol edited 4 years later hi

@mirandahawes3904

6 жыл бұрын

pls xplain f(x)=3(x+1)^2 - 9

@aandjay

3 жыл бұрын

Thank you

@nilufy4311

2 жыл бұрын

This is the most helpful comment ive ever read. I hope you are doing wonderful with your life

@legolad444

2 жыл бұрын

@@nilufy4311 thank you 🙏

when you understand it. so, we subtitute 0 into our function. it does not give as y as the output. it gives us y - k. so if we are at 0, but we know that this 0 on the y axis is when we subtract k from y. we have to move up on the y axis to get to where our output is. it is a simple equation: we have to be at k, coz if we subtract k from y we must be at 0. like k = 2; you must be at 2 on the axis this logic is also applicable on the x axis.

woow now I can graph quadratic equation only in my brain greath explanation greath teacher i' dont know why but I 'm happy now

@indestructible247

Жыл бұрын

"greath"

@mrbagginz5963

6 ай бұрын

lol

Difficult to take notes on this video tbh. Too much repetition. needs simpler explaining

Thank You So Much!!!!!! This Helped a Lot

awesome video sal

It's basically just y-intercepts and x-intercepts

Is anyone else on youtube a hardcore gamer like me who watches khan for math

@indestructible247

Жыл бұрын

im terrible at video games the only game i play is gta 4

This helped me a lot !!! thank you

Too much repetition on pointless parts and the new concepts that are valuable are vague in my opinion.

This was much too complicated and all over the place to be helpful.

@inxiti

8 ай бұрын

The higher up you get in KA the more complicated it gets, not complex but complicated. They begin skipping too much, assuming assumed knowledge, and before you know it you’re behind forever because they never took the time to explain every step, and do a poor job with explaining the why an action occurs for intuition.

Hey that's almost vertex, if we add k to both sides it will be exactly the vertex form!

I'm so confused

y-k?

I don't know but this video didn't help me at all.

@eduardoramirez5290

5 жыл бұрын

Same

@paragparikh2201

3 жыл бұрын

You need to know a lot about Mathematics to understand this.

@yamikawaii321

3 жыл бұрын

@@paragparikh2201 Bruh... that is like 4 years ago... I am now almost graduate. But thanks for your reply..

@krakrasivo1086

3 жыл бұрын

@@yamikawaii321 Lmao

@aandjay

3 жыл бұрын

@@yamikawaii321 what helped you

If f(x) = ax2 + bx + c , how must a and b be related so that the graph of f(x - 3) will be symmetric about the y-axis?

@itsflow3584

Жыл бұрын

did you figure it out?

okie dokie

dude your going too fast slow down

@abbymontgomery1212

8 жыл бұрын

U cld lower the speed or rewatch

Why this video is "unlisted" on youtube? Thanks for your great work!

@shazilhamzah8466

9 ай бұрын

Its been 9 years and you still didn' t get ur answer..

7:55 Biblically accurate parabola.

why did you not explain H and K - just learned x and Y -where did H and K come from??? lost

@firststrikeshunker6109

8 жыл бұрын

+Nicole Volek In his video, H basically shifts the graph left or right, and K shifts it up or down. For example: With the equation: y = x+3 Substituting k = 3, the graph would move 3 units upwards, and substituting k = -3, the graph would move 3 units downwards. Likewise, if I have y=(x-k)^2 And I substitute k=3, it becomes y=(x-3)^2 If you substitute in a x value, you will notice that the graph would shift 3 units to the RIGHT. ( And no I didn't get left and right mixed up) Similarly, y = (x+3)^2 would make the graph shift 3 units to the LEFT. Best way to make sense of this would be to graph the following: y=x^2 y=x+3 y=x-3 y=(x-3)^2 y=(x+3)^2 Hope this all makes sense

@susantparida8369

4 жыл бұрын

H and k are just variables to make you understand.

@krakrasivo1086

3 жыл бұрын

The vertex (minimum or the maximum point) of the parabola has coordinates (h, k). I know the reply is late, but just letting other people know.

@aandjay

3 жыл бұрын

@@firststrikeshunker6109 pls make math videos

@Imperio_Otomano_the_realest

2 жыл бұрын

h and k are some constants used as example

I am suffering

didnt get one single thing

bruh

meaningless video

your videos typically helps but this one made no sense and didnt help at all