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

Why did the U.S Navy never authorized the salvage of the USS Arizona
The coordinates of the vertices of triangle XYZ are given in the table. X Y Z (0,-6) (-10,4) (3,-1) Triangle XYZ is reflected across
Someone please help me
what tactic or method did John brown use to spread abolition
What is the meaning of tone in poetry? A.the mood a poem creates in the reader B.the theme, or moral, of a poem C.the literal meaning of a word D.a comparison o
What is the value of X?
Which of the answer choices best describes elements? homogeneous mixtures, always solid, pure substances, very dense.
How many neutrons are present in atoms of argon-39?
What was the name of the U.S. policy that gave economic aid to European democracies after ww2
The scale of a model train is 1 inches to 14.5 feet. One of the cars of the model train is 4 inches long. What is the length, in feet, of the actual train car?