1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Harman [31]
3 years ago
7

W(x) = x2 + 1; Find w(x + 3)

Mathematics
1 answer:
Tanzania [10]3 years ago
3 0

Given the function w:

\displaystyle \large{w(x) =  {x}^{2}  + 1  }

Since we want to find w(x+3), the input would be x+3.

Substitute x = x+3 in.

\displaystyle \large{w(x + 3) =  {(x + 3)}^{2}  + 1  }

<u>A</u><u>l</u><u>t</u><u>e</u><u>r</u><u>n</u><u>a</u><u>t</u><u>e</u><u> </u><u>S</u><u>o</u><u>l</u><u>u</u><u>t</u><u>i</u><u>o</u><u>n</u>

The answer above works if you want it in vertex form. For this alternate solution, I will convert the function in standard form.

As we know:

\displaystyle \large{ {(x + y)}^{2}  =  {x}^{2}  + 2xy +  {y}^{2} }

Therefore:

\displaystyle \large{ {(x + 3)}^{2}  =  {x}^{2}  + 2(x)(3) +  {3}^{2} } \\  \displaystyle \large{ {(x + 3)}^{2}  =  {x}^{2}  + 6x+  9}

Now for function w:

\displaystyle \large{w(x + 3) =   {x}^{2}  + 6x + 9+ 1  } \\  \displaystyle \large{w(x + 3) =   {x}^{2}  + 6x + 10}

Hence:

  • The answer is w(x+3) = (x+3)^2+1 for vertex form
  • OR w(x+3) = x^2+6x+10
You might be interested in
I’m so bad at this ughhhhhhhhhhhhhhhhhhh
Alexus [3.1K]

Answer:

a)6

b)v^2-u^2/2a

Step-by-step explanation:

a)Given that,

u=12

a= -6

s=9

We know that,

v^2=u^2+2as

or, v^2=(12)^2+2×(-6)×9

or,v^2=144-108

or,v^2=36

or, v=√36

∴v=6

         (Ans)

b)If ,v^2=u^2+2as

then, u^2+2as=v^2

or,2as=v^2-u^2

or, s=v^2-u^2/2a

∴s=v^2-u^2/2a

Hope ya find it helpful.. Thanks a lot...

6 0
3 years ago
Mr. Carter drove 638 miles the first weekend. He drove 243 miles the second weekend.
zaharov [31]
638-243 = 395 miles

rounding up, it would be 400 miles
7 0
3 years ago
Read 2 more answers
Write for the system 3x - 5y = 9,3x+y=3, which variable should we eliminate first?​
murzikaleks [220]

Answer:

x

Step-by-step explanation:

7 0
2 years ago
Can someone help me? I do not understand. She did NOT teach us this??
Flauer [41]
I think u just subtract 35° from 130° and that should be the angle of x
7 0
3 years ago
HELP I NEED HELP ASAP
pickupchik [31]

Answer:

D

Step-by-step explanation:

Firstly, the question is phrased very very badly as the four answers provided are coordinate points rather than how far apart the cities are in units.

To calculate the distance between two points, we have to use Pythagoras' Theorem as it's just pretty much a right-angle triangle. Please look at the (terribly drawn) image provided.

Keep in mind that these points are only roughly placed on the map.

But firstly, to use Pythagoras' Theorem (a^2 + b^2 = c^2), we must find the length of the two sides.

To find the length of the horizontal line (which from now on I'll refer to as 'a'), we must subtract the smaller x value from the larger one.

47 - 35 = 12

To find the length of the vertical line (which from now on I'll refer to as 'b'), we must subtract the smaller y value from the larger one.

122 - 78 = 44

I assume that the answer you should pick is D. (12, 44)

However, that doesn't exactly answer the question... it's worded a little weirdly.

To solve the rest of the equation, do the following:

Now that we know that the length of a = 12 and the length of b = 44, we can use Pythagoras' Theorem.

a^2 + b^2 = c^2

12^2 + 44^2 = c^2

144 + 1936 = c^2

2080 = c^2

c = \sqrt{2080}

c = 45.61

The answer is 45.61 units.

3 0
2 years ago
Other questions:
  • Bob discovers a box with 30 identical, used, rechargeable batteries in his attic.
    13·1 answer
  • Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
    6·1 answer
  • A student of the author earned grades of 92, 83, 77, 84, and 82 on herfive regular tests. She earned grades of 88 on the final e
    12·1 answer
  • Calculate the perimeter...
    12·2 answers
  • Solve y = x2 +11 for x.
    9·1 answer
  • Pls help me, its not hard
    6·1 answer
  • What is the slope of у&gt;- 2х + 3
    8·1 answer
  • Solve the following systems of equations without graphing <br> 5x + 10y = 30<br> -5x +15y = 20
    10·1 answer
  • Answer for brainliest
    10·2 answers
  • Hi I need the answer to the question quickly if possible please
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!