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 year and months did it take to build blackpool tower england
A rectangle whose perimeter is 80 m has an area of 384 m^2. Find the dimensions of the rectangle.
Two ships leave whittier, Ak at 7 AM. The first ship sails towards Valdez on a 54° course at a constant rate of 36 mi/h. The second ship sails towards Knight is
What is significant about Gatsby keeping watch over Daisy at the end of the chapter? In the Great Gatsby
How do u answer 3(x+2)=x-18
The golfer hits the golf ball. The quadratic y=-8*x^2 +48*x gives the time x seconds when the golf ball is at height 0 feet. In total, how long is the golf ball
Mary is making a pinata that has a ball-like shape. The pinata has a surface area of 40 feet. Use the formula for the surface area of a sphere: (S=4πr^2) to fin
what type of monkey starts with an h?
Who was the African-American who called the war with Mexico disgraceful and cruel? Why?
What was the purpose of the pure food and drug act of 1906?