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Mathematics 20 Online
OpenStudy (anonymous):

Can someone please help me with this quadratic question?

OpenStudy (anonymous):

OpenStudy (anonymous):

Turning point of quadratic equation occurs when the value of f(x) is either maximum or minimum

OpenStudy (anonymous):

Differentiate the function and equal it to zero..then, you will get a value for x. Substitute the value of x in the equation to get y..it is (b,c)

OpenStudy (anonymous):

so it's just (b,c) not (b/a, c/a)? @AbhimanyuPudi

OpenStudy (zzr0ck3r):

Is this from a calculus class?

OpenStudy (anonymous):

Yes, (b,c)

OpenStudy (anonymous):

No this is just some tutor work (: @zzr0ck3r

OpenStudy (zzr0ck3r):

for calculus or algebra?

OpenStudy (zzr0ck3r):

you do not need calculus to solve this... use the vertex of the parabola

OpenStudy (anonymous):

Im not really sure of what calculus is.....@zzr0ck3r

OpenStudy (zzr0ck3r):

how did you come up with the answer then?

OpenStudy (anonymous):

calculus uses differentiation or integration

OpenStudy (anonymous):

i think it is calculus

OpenStudy (anonymous):

y=(x-h)^2+ k TP is always (h, k)

OpenStudy (anonymous):

I never had found such problems in algebra unless it is specially mentioned in CURVES

OpenStudy (zzr0ck3r):

well the formula for the vertex(non calculus) is -b/(2a) where a,b, and c are the coefficients on the 1st,2nd, and third terms respectivly

OpenStudy (anonymous):

im confused :(

OpenStudy (zzr0ck3r):

if you foil that out it will look like some form of ax^2+bx+c the vertex(min or max) of the porabola is -b/(2a)

OpenStudy (zzr0ck3r):

this will give the independent variable(x).

OpenStudy (anonymous):

yes, that's derived from differentiation itself..Come on lets not confuse @Genuine If you are comfortable in memorizing that TP occurs at x = -b/2a, use it or if you are comfortable to find it through differentiation, go for it..

OpenStudy (anonymous):

Its your problem and its your call

OpenStudy (zzr0ck3r):

"Im not really sure of what calculus is.....@zzr0ck3r " -Genuine <-----@AbhimanyuPudi

OpenStudy (anonymous):

Well thanks....I guess? @AbhimanyuPudi

OpenStudy (anonymous):

I took that comment in this way: I do not know how to classify calculus from other math.

OpenStudy (zzr0ck3r):

And its derived, in 8th grade by completing the square...no need for calculus

OpenStudy (anonymous):

Yeah thats what I meant

OpenStudy (zzr0ck3r):

I have never met anyone that can differentiate, or know what a limit is for that matter that does not know they are doing calculus.....

OpenStudy (anonymous):

Alright, then you are right @zzr0ck3r

OpenStudy (zzr0ck3r):

except newton, and I didnt know him:)

OpenStudy (zzr0ck3r):

I am not exactly sure what I am right about, but great!

OpenStudy (anonymous):

Which grade or college level are you studying? @zzr0ck3r

OpenStudy (zzr0ck3r):

Im taking analysis and group theory right now, why?

OpenStudy (anonymous):

Nothing in particular..just wanna know it

OpenStudy (zzr0ck3r):

The form he gave in the question is very common for an algebra class, you would not really discuss a min or max in that form in calculus because that form is one that you can tell the min/max just by looking at it. I tudor at my school and this form is often from a math 95 class...I was not in any way saying your wrong.

OpenStudy (anonymous):

Yes, I can understand it..I am a high-school graduate. So, I naturally tend towards calculus while doing max or min points...

OpenStudy (anonymous):

find the first derivative then make it equal to zero .... u get x = something then put that x in the equation to get the ordinate....

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