natlindylooohoo7 natlindylooohoo7
  • 05-04-2019
  • Mathematics
contestada

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

Respuesta :

jdoe0001 jdoe0001
  • 05-04-2019

[tex]\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)[/tex]

Answer Link

Otras preguntas

15. __________ guide signs tell you about recreational facilities, such as parks, campgrounds, fishing sites, or boat launches. A. Blue B. Green C. Brown D. Whi
How do humans negatively impact environments as they spread into areas of natural habitat? Select four options. They use a large share of natural resources per
PLEASE help me solve this question! No nonsense answers please!
A student runs 35 m east and then 12m west. What is the distance run by the student
PLEASEEEEEEEE HELPPPPPPPPP MEEEEEEEEEE
Luis, Diego, and Cecil are going fishing. Luis brings 4 cans of worms. Diego brings 3 cans of worms plus 2 extra worms. Cecil brings 2 cans of worms. If they ha
Help thanks !!!!!!!!!!!!!
Solve for x: 7 > x/4
Help I don’t know the answer
Gas contained in tizzy drinks