berloo berloo
  • 19-12-2018
  • Mathematics
contestada

which of the following is true for the graph of the quadratic function f(x)=3(x+2)(×-2)

which of the following is true for the graph of the quadratic function fx3x22 class=

Respuesta :

jimrgrant1 jimrgrant1
  • 19-12-2018

Answer:

A

Step-by-step explanation:

given y = 3(x + 2)(x - 2) = 3(x² - 4) = 3x² - 12

for the y- intercept let x = 0

f(0) = - 12 → y-intercept is the point (0, - 12) → True

for x-intercepts let y = 0

3(x + 2)(x - 2) = 0

x + 2 = 0 ⇒ x = - 2

x - 2 = 0 ⇒ x = 2

x- intercepts are (- 2, 0) and (2, 0) → not (0, - 12)

since f(x) = 3x² - 12 is symmetric about the y-axis

the vertex is at (0, - 12 ) → not (- 2, 2)


Answer Link

Otras preguntas

I think its a fad changes your appearance but im not sure what is it?
How many groups of 3/4are in 11/4
Which is a y-intercept of the graphed function? (–9, 0) (–3, 0) (0, –9) (0, –3).
9. Which was not cited as one of the downsides of Black Friday?
What is 4 Over 6 divided by 3 Over 12 what The quotient is
What causes the phases of the moon? (Select two.) The Moon changes shape as it moves around Earth. The Moon's position relative to Earth results in phases. Eart
Helppppppppppppp plz
what are these saying in spanish Eres asombrosa puedes llegar a cualquier cosa
A construction manager with a BLANK personality commands respect. The BLANK coordinate with clients, architects, and other officials, as well as their own team
Which term describes the unconscious exclusion from awareness of anxiety-provoking thoughts, feelings, and memories