14 - Graphing Quadratic Functions - Max & Min Values - Part 1 

3:52 helped me I was trying to figure out if it’s still a max or min when the quadratic function was facing up or down

Was just going over stuff I learned in school long time ago. And saw this video. 👍Very well explained.

Could you also state that (x + b/2a)^2 is the same as (x - (-b/2a))^2 and read the shift _h_ directly as -b/2a? Since the vertex form is always y - k = (x - h)^2, you would need to think of an addition on the right in terms of a subtraction: subtracting a negative is the same as adding a positive, and this would make the leftward shift obvious (no memorization of "do the opposite of the sign" needed). In the case of a subtraction being given in the first place, it could be seen as subtracting a positive (meaning rightward shift). (x - (+b/2a))^2 I know that students are often taught to think of subtraction in terms of addition in pre-algebra, so asking them to go the other way could potentially be confusing. Just curious as to what others think of this.

This is great work

Wonderful explanation sir, this helped a lot. Thank you!

great work indeed

Thanks your a great teacher learned alot.

Excellent explanation Sir...

2 unit shifted over is x and y one unit is up are vertex could not get it

Great explanation sir!

y=2(4)-16

f(x)=2x2+8x

Watching this in 2022 and this was so helpful

vertex -2 -8

well explained...

y=f(-2)=2(-2)2+8(-2)

x=-b/2a=- 8/2(2)= - 8/4= -2

Thank you!!!

y=8-16

Great 🎉thanks

y(f-2)=2x2+8x

a=2 b=8

y=f(-b/2a)

y= - 8

x=(-b/2a)

How did you find the (f)?

x= -2

It also works while factoring 'a' i.e ax^2+a/abx=a(x^2+b/ax).

formula

Do you still love peanut butter and jelly?

math is the most stupid thing ever like learning system of someone who just imagined some numbers and things