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Semmy [17]
3 years ago
12

I need help ASAP please If the graph of f(x) is:

Mathematics
2 answers:
Zielflug [23.3K]3 years ago
8 0

Answer:

d

Step-by-step explanation:

its asking for f(-x) so the x has to be negative so its has to be going to the left side it has to be like the same shape as the f(x) since it only changed the charge (I'm sorry if that didnt help I dont know how to explain)

AleksAgata [21]3 years ago
7 0
I’m pretty sure it’s D. Because if you flip the x values then you would just move them over the y axis
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I need to know the next term in the sequence AND the nth term of all the sequences
ANEK [815]

I see you already did the ones where you figured out the formula.  There's a fun way that doesn't require figuring out the formula, called a forward difference table.

Let's work out the first one to learn the technique.  We write the sequence and under it the forward differences,

2 5 10 17 26

3 5  7  9

2 2 2  

We got 3=5-2, 5=10-5, 7=17-10, etc and the same for subsequent lines.  Eventually we get to an all constant line and we stop.

To extend the table we just add some constants to the constant line and work our way back up:

2 5 10 17 26 37 50

3 5  7  9  11  13

2 2 2   2  2

So we get 11 as 9+2 and 37 as 26+11 for our answer which matches the answer you already got.

Let's do the ones you haven't.

2 8  18 32 50 72

6 10 14 18  22

4  4  4   4  

Answer: 72

3 9  19  33 51   73

6 10 14  18  22

4 4  4    4

Answer: 73

2 11 26 47 74  107

9 15 21 27  33

6 6  6    6

Answer: 107

Three's our limit so I'll leave the last one to you.

---

A comment says we need the functions.  They're all quadratics.  I'll tell you how they want you to do it and how to do it in general.

They just want you to recognize these are all pretty close to just u_n=n^2.   The one that goes 3 12 27 etc. we recognize as just u_n=3n^2.   The one that goes 2 8 18 is just u_n =2n^2.  The one that goes 3 9 19 is one more than that so u_n=2n^2+1. The one that goes 2 11 26... is one less than 3 12 27 so is u_n=3n^2-1.  Again I'll leave the last one.

----

We can do these quadratics in general.  Let's work from our difference table.  If we have

f(n) = an^2 + bn + c

and we form the difference table for f(1), f(2), f(3) we get

a+b+c   4a+2b+c   9a+3b+c

3a+b     5a+b

2a

so we can use the first columns of our difference tables to get our polynomial.  

2 8  18 32 50 72

6 10 14 18  22

4  4  4   4  

Answer: 72

So we have 2a=4, so a=2

3a+b=6, so b=6-3(2)=0

a+b+c=2 so c=2-0-2=0

That gives us the obvious answer

u_n = 2n^2

3 9  19  33 51   73

6 10 14  18  22

4 4  4    4

Answer: 73

We have 2a=4 again so a=2, 3a+b=2 so b=0, and a+b+c=3 so c=1 giving

u_n = 2n^2+1

2 11 26 47 74  107

9 15 21 27  33

6 6  6    6

Answer: 107

2a=6 gives a=3

3a+b=9 gives b=0

a+b+c=2 gives c= -1

u_n = 3n^2-1

3 0
3 years ago
What is the value of **y** where the two lines are equal?
Novosadov [1.4K]

Answer:

y = - 1

Step-by-step explanation:

The 2 lines are equal at the point of intersection

The point of intersection is (2, - 1 ) with y = - 1

6 0
3 years ago
Read 2 more answers
Identify the function as either a constant, direct variation, absolute value or greatest integer function f (x)=-4
boyakko [2]
Answer: Constant

No matter what the input x is, the output f(x) is going to be -4. Therefore, the output is constant. 

Note: f(x) can be interchanged with y. So we can say y = -4.
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3 years ago
What are some helpful tricks to know when solving non homogenous second order differential equation
DiKsa [7]
Science is  the answer
4 0
3 years ago
CORRECT GETS BRAINLIEST A pizzeria delivered p pizzas on Thursday. On Friday, it delivered 3 more
Alex73 [517]

Answer:

(p×2)+3

Step-by-step explanation:

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