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
mario62 [17]
3 years ago
5

Please answer this ASAP. The question is down below. Thank you!

Mathematics
2 answers:
Effectus [21]3 years ago
8 0

Answer:  Vertex: y=\dfrac{1}{2}(x-2)^2-7

               Standard: y=\dfrac{1}{2}x^2-2x-5

               Transformations: vertical shrink by a factor of 1/2,

                                            horizontal shift 2 units to the right,

                                            vertical shift 7 units down.

<u>Step-by-step explanation:</u>

Vertex form: y = a(x - h)² + k

Standard form: y = ax² + bx + c

Given: Vertex (h, k) = (2, -7), the y-intercept (0, c) = (0, -5)

Input those values into the Vertex form to solve for the a-value

-5=a(0 - 2)² - 7

2 = a(- 2)²

2 = 4a

\dfrac{1}{2}=a

a) Input a = 1/2 and (h, k) = (2, -7) into the Vertex form

\large\boxed{y=\dfrac{1}{2}(x-2)^2-7}

b) You can plug in a = 1/2, c = -5, (x, y) = (2, -7) to solve for "b"

    or

   You can expand the Vertex form (which is what I am going to do):

y=\dfrac{1}{2}(x-2)^2-7\\\\\\y=\dfrac{1}{2}(x^2-4x+4)-7\\\\\\y=\dfrac{1}{2}x^2-2x+2-7\\\\\\\large\boxed{y=\dfrac{1}{2}x^2-2x-5}

c) Use the Vertex form to describe the transformations as follows:

  • a is the vertical stretch (if |a| > 1) or shrink (if |a| < 1)
  • h is the horizontal shift (positive is to the right, negative is to the left)
  • k is the vertical shift (positive is up, negative is down)

y=\dfrac{1}{2}(x-2)^2-7

a = 1/2  --> vertical shrink by a factor of 1/2

h = 2    --> horizontal shift 2 units to the right

k = -7   --> vertical shift 7 units down

Sonja [21]3 years ago
7 0

Answer:

y = .5x^2 -2x -5

Step-by-step explanation:

Well we can start by seeing if the parabola is the same width by comparing it to its parent function ( y = x^2 )

In y = x^2 the 2nd lowest point is just up 1 and right 1 away from the vertex.

This is not true for our parabola.

So we can widen it by to the desidered width by making the x^2 into a .5x^2.

So far we’ve got y = .5x^2

Now the parabola y intercept is at -5.

So we can add a -5 into the equation making it.

y = .5x^2 - 5

Now for the x value.

So we can find the x value by seeing how far away the parabola is from from the y axis.

So the x value is -2x.

So the full equation is y = .5x^2 -2x -5

Look at the image below to compare.

You might be interested in
Solve for M <br> -3+m/ 9 = 10
sweet-ann [11.9K]

Step-by-step explanation:

-3+m/9=10

m/9=10+3

m/9=13

m=13×9

m=117

<u>N</u><u>o</u><u>t</u><u>e</u><u>:</u><u>i</u><u>f</u><u> </u><u>y</u><u>o</u><u>u</u><u> </u><u>n</u><u>e</u><u>e</u><u>d</u><u> </u><u>t</u><u>o</u><u> </u><u>a</u><u>s</u><u>k</u><u> </u><u>a</u><u>n</u><u>y</u><u> </u><u>question</u><u> </u><u>please</u><u> </u><u>let</u><u> </u><u>me</u><u> </u><u>know</u><u>.</u>

5 0
2 years ago
Ayudaaaaaaa<br> porfavor <br> xd
nydimaria [60]

pls

Step-by-step explanation:

nicce

6 0
3 years ago
A graduated cylinder is filled with 36pi cm^3 of liquid. The liquid is poured into a different cylinder that has a radius of 3 c
inysia [295]
Hope you got your answer.

5 0
3 years ago
6.) the following function represents the profit P(n) in dollars that a concert promoter makes by selling tickets for n dollars
marissa [1.9K]
For Part A, what to do first is to equate the given equation to zero in order to find your x intercepts (zeroes)

0=-250n^2+3,250n-9,000 after factoring out, we get

-250(n-4)(n-9) and these are your zero values.

For Part B, you need to square the function from the general equation Ax^2+Bx+C=0. So to do that, we use the equated form of the equation 0=-250n^2+3,250n-9,000 and in order to have a positive value of 250n^2, we divide both sides by -1

250n^2-3,250n+9,000=0

to simplify, we divide it by 250 to get n^2-13n+36=0 or n^2-13n = -36 (this form is easier in order to complete the square, ax^2+bx=c)

in squaring, we need to apply <span><span><span>(<span>b/2</span>)^2 to both sides where our b is -13 so,
(-13/2)^2 is 169/4

so the equation now becomes n^2-13n+169/4 = 25/4 or to simplify, we apply the concept of a perfect square binomial, so the equation turns out like this 

(n-13/2)^2 = 25/4 then to find the value of n, we apply the square root to both sides to obtain n-13/2 = 5/2 and n is 9. This gives us the confirmation from Part A. 

For Part C, since the function is a binomial so the graph is a parabola. The axis of symmetry would be x=5.

</span></span></span>
7 0
3 years ago
1 Mr. Ruiz made a map of his ranch on the grid shown below.
tatuchka [14]
Answer: C, 20%

Hope this helps
5 0
3 years ago
Other questions:
  • Write 24,000 in expanded form.
    7·1 answer
  • Which statement could the expression n + 1 represent?
    13·2 answers
  • Help plz
    6·2 answers
  • Explain your answer plez
    12·1 answer
  • Please help!! Thank you in advance! Will mark Brainliest!
    14·2 answers
  • When you flip a biased coin the probability of getting a tail is 0.34. Find the probability of getting a head.
    9·2 answers
  • In a class of 10, there are 5 students who play soccer.
    10·1 answer
  • The three angles of a triangle have
    14·1 answer
  • Hi how are you guys doing today
    7·2 answers
  • PLEASE HELP WILL MARK BRAINLIEST FOR BEST ANSWER If you reflect (-2, -8) across both axes, which quadrant will it be in? Justify
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!