ethanzhao436 ethanzhao436
  • 04-06-2021
  • Mathematics
contestada

The zeros of a function f(x) are 8 (double root) and -3 and the y-intercept is -768. Write the equation of f(x) in factored form.

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 04-06-2021

9514 1404 393

Answer:

  f(x) = -4(x +3)(x -8)²

Step-by-step explanation:

Each zero (z) gives rise to a factor (x -z). The given zeros mean the factored form is ...

  f(x) = a(x -8)²(x +3)

The value of this at x=0 is ...

  f(0) = a(-8)²(3) = 192a

We want the value to be -768, so ...

  -768 = 192a

  -4 = a . . . . . . . . divide by the coefficient of 'a'

Then the factored form is ...

  f(x) = -4(x +3)(x -8)²

Ver imagen sqdancefan
Answer Link

Otras preguntas

How many words are in the Pledge of Allegiance? a. 31 b. 22 c. 29
The 15th Amendment, which granted African Americans the right to vote, was passed on which date?
The heads of which presidents are carved into Mount Rushmore?
The acceleration of the gravity Moon is equal to one-sixth of Earth's gravitational acceleration times. if an astronaut has a mass of 60 kg, what is the mass an
Individuals who are approximately the same age and are linked by common interests, including friends, classmates, and the 'kids in the neighborhood,' are most
How to find the inverse of the function f(x)=2x-3 ? Please
What iconic July 4th edible was nicknamed by sports cartoonist Tad Dorgan? a. hot dog b. popsicle c. pop
question number 4 please help
The oldest rock in the world, the Granitic Gneiss, was found in what state?
What is English Literature??