divinatrigos00164 divinatrigos00164
  • 01-07-2020
  • Mathematics
contestada

Consider the quadratic function:
f(x) = x2 – 8x – 9
Vertex: ( negative b Over 2a, f ( negative b Over 2 a))
What is the vertex of the function? ( , )

Respuesta :

Msurf617
Msurf617 Msurf617
  • 01-07-2020

Answer:

(4, -25)

Step-by-step explanation:

The function is put into this form: f(x)= Ax^2 + Bx + C

In the equation x^2 - 8x - 9, A is 1, B is -8 and C is -9

The negatives cancel for negative B so 8 is positive.

8/ 2(1) = 4

Now we plug 4 into the function as x to find the y value

4^2 - 8(4) - 9

-25

Answer Link

Otras preguntas

What is the square root of 12
Select the pair of homonyms from the choices below: a. alter, altar b. big, enormous c. long, short d. eyes, nose
Jane started a new job and is able to telecommute instead of working in the office. She knows she is doing a great job, but she is afraid that her boss doesn’t
On a global basis, which of the following is the largest reservoir of carbon A. Atmosphere B. Vegetation C. Sediments D.Fossil Fuels
When you mixed 20 grams of magnesium and an excess of nitric acid, 1.7 grams of hydrogen was actually produced. What is the percent yield of hydrogen during thi
The process of isotopes breaking down and emitting particles, such as alpha or beta, to form a new substance
Sand dunes developed due to what
A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function? y = x/14 y = x/7 y = 7x y = 14x
Analyze the foot of the following phrase. I came, I saw, I conquered Gaul
which one of the following is the proper operation of 3/7 A.7÷3 B.3×7 C.3÷7 D.7×3