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Mathematics 17 Online
OpenStudy (baitcaster13):

please help

OpenStudy (anonymous):

Sure. What's up?

OpenStudy (baitcaster13):

The function f(x) = −x2 + 44x − 384 models the daily profit, in dollars, a shop makes for selling donut combos, where x is the number of combos sold and f(x) is the amount of profit. Part A: Determine the vertex. What does this calculation mean in the context of the problem? Part B: Determine the x-intercepts. What do these values mean in the context of the problem?

OpenStudy (baitcaster13):

algebra 1

OpenStudy (anonymous):

Hm.. I think I've seen this problem before.. ;)

OpenStudy (anonymous):

Since I'm assuming this is a parabola, did you mean -x^2 or x times 2?

OpenStudy (baitcaster13):

the first one

OpenStudy (anonymous):

Okay, so -x squared. I was confused for a sec and I was like wuh... xD Okay, so I'm going to get the answer myself and then I'll lead you through it. I'll take a couple minutes.

OpenStudy (baitcaster13):

oh sry i have the anseer is this right

OpenStudy (baitcaster13):

i thought i posted it

OpenStudy (baitcaster13):

A. −(x2−44x+484−484+384) −(x−22)2+100 Vertex is (22,100) Since the equation is in the form -(x-a)^2 +b, meaning the vertex is the maximum point of the curve. Relating to the situation, it just means that 100 is the maximum profit and 22 is the corresponding number of combos sold B. To get the x-intercepts, just factor it out. x-int is (x,0) so. 0=(x-32)(X-12) x-intercepts are 12 and 32 in these points, f(x)=0 which means the profit is also zero.

OpenStudy (baitcaster13):

@ILovePuppiesLol

OpenStudy (baitcaster13):

@purple_pink

OpenStudy (anonymous):

Brb, I'll be back soon.

OpenStudy (baitcaster13):

@desmarie

ILovePuppiesLol (ilovepuppieslol):

not in the mood for math lol sorry

OpenStudy (baitcaster13):

ok

OpenStudy (baitcaster13):

@Mehek14

OpenStudy (baitcaster13):

@Qwertty123

OpenStudy (baitcaster13):

@rebeccaxhawaii

OpenStudy (baitcaster13):

@party_girl

Mehek (mehek14):

do you know how to find the vertex of a parabola?

OpenStudy (shadowlegendx):

no

OpenStudy (shadowlegendx):

teach me

OpenStudy (baitcaster13):

no

OpenStudy (party_girl):

Don't know sorry

OpenStudy (baitcaster13):

ok thx any way party

Mehek (mehek14):

\(x=\dfrac{-b}{2a}\) in the general formula \(y=\color{red}{a}x^2+\color{blue}{b}x+c\)

Mehek (mehek14):

so find the values from your equation and plug them in

OpenStudy (shadowlegendx):

Once you find the x, you input it back into the equation to find the y

OpenStudy (baitcaster13):

um idu sry

OpenStudy (shadowlegendx):

bait, channel that brainpower and stop trying to plant that bomb

OpenStudy (baitcaster13):

what

Mehek (mehek14):

from your equation, find a

OpenStudy (shadowlegendx):

I think he needs a mental push

OpenStudy (shadowlegendx):

@baitcaster13 Mekey is a girl

OpenStudy (baitcaster13):

ya i know so

OpenStudy (shadowlegendx):

Sheʻs sapiosexual

OpenStudy (baitcaster13):

????

OpenStudy (shadowlegendx):

Google it

rebeccaxhawaii (rebeccaxhawaii):

meek's got you but meeky bb i need your help

OpenStudy (baitcaster13):

so she like smart people so what

OpenStudy (baitcaster13):

idu

OpenStudy (shadowlegendx):

@baitcaster13 You gotta use more brainpower than 2 syllable words and abbreviations. We need you popping out equations

Mehek (mehek14):

@baitcaster13 find a, which should be attached to \(x^2\)

OpenStudy (shadowlegendx):

Think, you want to solve for the vertex. Follow the formula

ILovePuppiesLol (ilovepuppieslol):

try ur best lol we are not here to give u answers :)

OpenStudy (baitcaster13):

my test just crashed i dont need help anymore lol

ILovePuppiesLol (ilovepuppieslol):

rip test

OpenStudy (baitcaster13):

so now i get all different questions

OpenStudy (baitcaster13):

:( im crying

ILovePuppiesLol (ilovepuppieslol):

*gives u tissue* dun cry D:

OpenStudy (shadowlegendx):

The fates and interceded, as we cannot help users on tests

Mehek (mehek14):

:( that's why ur not supposed to get distracted by idiots like shad and we can't help on tests

rebeccaxhawaii (rebeccaxhawaii):

at least you got more time to study c:

ILovePuppiesLol (ilovepuppieslol):

^

OpenStudy (shadowlegendx):

Mekey, the fates were using me

OpenStudy (baitcaster13):

it wasent a test i just called it that it is studyisland

ILovePuppiesLol (ilovepuppieslol):

just try ur best on study island it isn't graded

OpenStudy (baitcaster13):

it is for me

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