Question

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? (5 points)
Part B: Determine the x-intercepts. What do these values mean in the context of the problem? (5 points)

Answer 1

Exam?

Answer 2

@welshfella

Answer 3

No. Assessment.

Answer 4

I'll see what I can do

Answer 5

the y-value of the vertex - the maximum possible daily profit
the x-value of the vertex - how many combos do you have to sell to reach this max. profit.

Answer 6

Did that help at all?

Answer 7

I dont know how to do vertex.

Answer 8

FLVS?

Answer 9

yep

Answer 10

I am rushing through I finished 3 chapters in a week

Answer 11

Go back into your lessons, you should learn it so it will be easier to understand

Answer 12

You really shouldn't rush you could get kicked from flvs or suspended

Answer 13

Don't you do DBA's?

Answer 14

Yes. I come here for help to understand. Not all of it makes sense, some does. I have to rush through. I have to finish algebra 1 in 2 months. The 2 months ends monday. Im on the last chapter now, i started it this morning and I have a dba tonight for it.

Answer 15

I thought there was no limit to flvs, do you do full time or for public school?

Answer 16

I am getting ahead in public school.

Answer 17

ohhh

Answer 18

Can you help me?

Answer 19

I am trying to understand it, but its not clicking. Normally it does.

Answer 20

(22,100) is the vertex at the highest point, so the most profit we can get is $100 and that happens when 22 combos are sold

Answer 21

So i graph the funtion On desmos. I find the highest point. The y = the max and the x is the number to get the max.

Answer 22

You can say it like that I guess

Answer 23

How do I get x-intercepts? I know y and I can get the x-intercept from a point. But not from a funtion.

Answer 24

For part B?

Answer 25

Yes @Jadeishere

Answer 26

What's going on?

Answer 27

I tagged you because Google was not here :P

Answer 28

Oh, well, I'd prefer not to have to read through all of that, so will you fill me in on what's been done and what the current question is?

Answer 29

I think he is back Im not sure.
I got part A done. I dont know how to get the x intercept.

Answer 30

@Google Are you going to help?

Answer 31

Yeah ill take over

Answer 32

Kay

Answer 33

the x-intercepts are 12 and 32. As ordered pairs they are (12,0) and (32,0). They represent the points where the profit is $0. This is where you break even. You don't gain any money and you don't lose any money.

Answer 34

idk