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
sammy [17]
3 years ago
11

Explain in detail how to find the vertex:  y=-2x^2 + 2x + 3

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
7 0

\bf \textit{vertex of a vertical parabola, using coefficients} \\\\ y=\stackrel{\stackrel{a}{\downarrow }}{-2}x^2\stackrel{\stackrel{b}{\downarrow }}{+2}x\stackrel{\stackrel{c}{\downarrow }}{+3} \qquad \qquad  \left(-\cfrac{ b}{2 a}~~~~ ,~~~~  c-\cfrac{ b^2}{4 a}\right)


\bf \left(-\cfrac{2}{2(-2)}~~,~~3-\cfrac{2^2}{4(-2)}  \right)\implies \left( \cfrac{1}{2}~~,~~3+\cfrac{4}{8} \right)\implies \left(\cfrac{1}{2}~~,~~\cfrac{28}{8}  \right) \\\\\\ \left(\cfrac{1}{2}~~,~~\cfrac{7}{2}  \right)\implies \left(\frac{1}{2}~,~3\frac{1}{2}  \right)

You might be interested in
How to work out surface area of cubes
allsm [11]

Answer:

The surface area of a cube = 6a2 where a is the length of the side of each edge of the cube. Put another way, since all sides of a cube are equal, a is just the lenght of one side of a cube. We have 96 = 6a2 → a2 = 16, so that's the area of one face of the cube.

Hope this helps!!!!!!!!

8 0
3 years ago
PLEASEE HELPPP MEE WITH THIS QUESTION
77julia77 [94]

Answer:

A) It warned European countries not to make more colonies in the west.

According to Encyclopedia Britannica, two of the points made by the doctrine include that the Western Hemisphere was not an option for future colonization and that any attempt by a European power to take control of and/or oppress any country in the Western Hemisphere would be seen as an attack against the US.

Step-by-step explanation:

7 0
3 years ago
The depth, d, of a lake is 392 m, rounded to the nearest integer.
melisa1 [442]

Answer:

5

Step-by-step explanation:

2+2+1=5

3 0
2 years ago
Please help me with this final math question asap. I will mark brainliest Thank you so much! Question 5/5
V125BC [204]

Answer:

MP is approximately equal to ON because one side of a rectangle is always the same as another side of a rectangle.  

Step-by-step explanation:

4 0
3 years ago
Round 62,686 to nearest hundredth
Semenov [28]

Answer: 62.7 is rounded to the nearest hundredth.

Step-by-step explanation:

Because...

if you look at the 6 at the hundredth place then you have to look at the number next to it, which is 8 and since it's 5 and greater it the 6 becomes a 7 and therefor, the answer is 62.7.

* Hopefully this helps:) Mark me the brainliest:)!!

5 0
3 years ago
Other questions:
  • Which ordered pair is a solution of the equation y-3=5(x-2)
    9·1 answer
  • You were sick and take a test a day late. Your 95 raised the class average from 69 to 70. How many students, including you, took
    11·1 answer
  • you buy two rolls of wrapping paper. each roll has the same lateral surface area. what is the diameter of roll B?
    10·1 answer
  • Write the equation in slope-intercept form with the point (2,7.5) with an x intercept of −1.
    12·1 answer
  • According to the table in which month did the size of Bertrand's poster collection change the most? Use absolute value to explai
    11·1 answer
  • Use the formula v=u+at to find the velocity when the initial velocity is 3m/s2 the time is 7 seconds
    15·1 answer
  • Reflect the vector (-3,5) across<br> the line y=x.
    8·1 answer
  • Helllllpppp meeeeee!
    12·2 answers
  • Proportions in Similar Triangles find the value of x
    14·1 answer
  • Really need help with this problem
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!