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

@welshfella

Answer 2

i found the vertex and the x intercept but i just need help with the second part

Answer 3

second part of the equation

Answer 4

question** lol

Answer 5

@welshfella ?? plz bro

Answer 6

sorry gotta go right now

Answer 7

@Griffindore anything on this

Answer 8

@phi ??

Answer 9

the x-intercepts are where f(x) = 0 i.e. where the profit is zero.
it is where they break even

Answer 10

what about the vertex

Answer 11

@phi

Answer 12

@phi

Answer 13

@phi
u there

Answer 14

@SolomonZelman can u help

Answer 15

plz

Answer 16

The vertex of a parabola that opens down, is the maximum point of the parabola.

In this case, the maximum point is the maximum daily possible profit.

the vertex in a form of (h,k):
k - the maximum possible daily profit
h - how many combos do you have to sell to reach this max. profit.

Answer 17

the vertex can be found by completing the square.

Answer 18

in other words


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 19

thx

Answer 20

I am probably going to be gone right now, but I will do my best to be on track with you here.