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
irga5000 [103]
3 years ago
14

Find the vertex for this function. f(x)=-2x^2+8x-11​

Mathematics
1 answer:
loris [4]3 years ago
3 0

\bf \textit{vertex of a vertical parabola, using coefficients} \\\\ f(x)=\stackrel{\stackrel{a}{\downarrow }}{-2}x^2\stackrel{\stackrel{b}{\downarrow }}{+8}x\stackrel{\stackrel{c}{\downarrow }}{-11} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right) \\\\\\ \left( -\cfrac{8}{2(-2)}~~,~~-11-\cfrac{8^2}{4(-2)} \right)\implies \left( 2~~,~~-11+\cfrac{64}{8} \right) \\\\\\ (2~~,~~-11+8)\implies (2~~,~~-3)

You might be interested in
What is the equation of the line of best fit for the following data ? Round the slope and y-intercept of the line to three decim
Mamont248 [21]

Answer:

y=1.164x+0.885

Step-by-step explanation:

np

7 0
3 years ago
Read 2 more answers
A person invests 9000 dollars in a bank. The bank pays 4.25% interest compounded daily. To the nearest tenth of a year, how long
mezya [45]

Answer:

The person must invest the money in the bank for 18 years to reach $19600, if a person invests 9000 dollars in a bank and the bank pays 4.25% interest compounded daily.

Step-by-step explanation:

4 0
3 years ago
Find the Sum. -12+(-11)+(-2)
Pavel [41]
The final answer is (-25)
5 0
3 years ago
Read 2 more answers
The world record for the fastest typing speed is 212 words per minute. How many words per second is this? Round to the nearest t
taurus [48]

Answer:

3.5

Step-by-step explanation:

212 words / 60 seconds in a minute = 3.53 repeating


6 0
3 years ago
Read 2 more answers
X=10 <br> 3x+5y=20 <br> in the system of equations, what is the value of y
vova2212 [387]
3(10) + 5y = 20
5y = 20 - 30
5y = - 10
y = - 2
6 0
3 years ago
Read 2 more answers
Other questions:
  • Each day, Tally's baby sister eats 1/4 cup of rice cereal in the morning and 1/4 cup rice cereal in the afternoon.
    13·1 answer
  • School...
    10·1 answer
  • karen has n decks of cards. each deck has 52 cards in it. using n , write an expression for the total number of cards karen has.
    5·1 answer
  • Find X:<br><br> Solving Linear Equations With A Variable On Only One Side Of The Equation.
    9·2 answers
  • How to solve -6x-5y=18<br> -5×+2y=22
    6·1 answer
  • Please help please please
    10·1 answer
  • A sports store sells three different packs of tennis balls. Brand A costs $2.50 for two balls, brand B sells three balls for $3.
    10·1 answer
  • If B is the midpoint of AC, and AC= 8x-20, find BC.
    5·1 answer
  • Fill i the blank
    9·1 answer
  • Complete the steps 4/9 divided by 1/2
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!