PLZ HELP!! I PUT 100 PTS

V(x) = -23+56x2 - 1008x+5760
5000
4000+
3000
Volume
2000
1000
-5
5
10 15 20 25
Change in each dimension
Which of the following statements are true about the function graphed here? Select all that apply.
The mathematical function is decreasing for all values The mathematical function has an absolute minimum
of x such thatx > 15.
at x = 15.
The domain of the mathematical function shown in the The mathematical function is increasing for all x such
graph is all real numbers.
that 15 < x <22.
The domain of the mathematical function shown in the The average rate of change of the function between x
graph is all values of x such that 0 sxs 20.
20 and x = 25 is 0.

c are A

Step-by-step explanation:

what?

step-by-step explanation:

what do you need with. i love quadrants. can you tell me ?

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺