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juin [17]
3 years ago
12

Choose the graphic representation of the quadratic function f(x)=x^2-8x+24

Mathematics
2 answers:
grigory [225]3 years ago
8 0
The Answer is ----D----

MArishka [77]3 years ago
7 0

Answer:

Refer the attached figure.

Step-by-step explanation:

Given : The quadratic equation -  f(x)=x^2-8x+24

To find : The graphic representation of the quadratic function ?

Solution :

We plot the graph of quadratic equation,

The standard form of equation is y=ax^2+bx+c

Comparing with given equation, f(x)=x^2-8x+24

a=1 , b=-8 , c=24

Axis of symmetry is  x=-\frac{b}{2a}

The axis of symmetry of given equation is x=-\frac{-8}{2(1)}=4

The vertex form of quadratic equation is f (x) = a(x - h)^2 + k

Where, (h,k) are the vertex.

Convert the quadratic equation into vertex form,

By completing the square,

f(x)=x^2-8x+24

f(x)=(x^2-2(4)x+(4)^2)-(4)^2+24

f(x)=(x-4)^2+8

On comparison,

(h,k)=(4,8)

Now, we plot the equation with vertex (4,8).

Refer the attached figure below.

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