Select the quadratic function with a graph that has the following features. x-intercept at (8,0) y-intercept at (0,-32) maximum value at (6,4) axis of symmetry at x = 6
A. f(x)= -1/2x^2+6x-32
B. f(x)= -1/2x^2+6x-16
C. f(x)-x^2+12x-32
D. f(x)= -x^2+12x-36

Respuesta :

Answer:

The correct option is C.

Step-by-step explanation:

The function has axis of symmetry at [tex]x=6[/tex], it represents that the parabola is along the x-axis and the standard form of parabola is

[tex]y=a(x-h)^2+k[/tex]

Where, a is scale factor and (h,k) is vertex.

The maximum or minimum value of a quadratic function is the vertex of parabola. So, vertex of parabola is (6,4).

[tex]y=a(x-6)^2+4[/tex]

The y-intercept of the function is (0,-32)

[tex]-32=a(0-6)^2+4[/tex]

[tex]-32-4=36a[/tex]

[tex]-36=36a[/tex]

[tex]a=-1[/tex]

Therefore required equation of parabola is

[tex]y=-(x-6)^2+4[/tex]

[tex]y=-(x^2-12x+36)+4[/tex]

[tex]y=-x^2+12x-36+4[/tex]

[tex]y=-x^2+12x-32[/tex]

Therefore option C is correct.

Ver imagen DelcieRiveria

Answer:

C.

Step-by-step explanation:

I took the test and it was right