Answer :
The definition of quadratic function is given by:
[tex](1) \ f(x)=ax^{2}+bx+c \\ \\ where \ a, b, c \ are \ real \ values[/tex]
So the problem asks for two conditions:
1. Write the quadratic function in factored form.
2. The vertex has an x-coordinate of 3.
Then the equation (1) must be written as follows:
[tex]f(x)=(x-m)(x-n) \\ \\ where \ m \ and \ n \ are \ the \ roots[/tex]
To satisfy the two conditions:
[tex]\frac{m+n}{2}=3[/tex]
So we are free to choose the value of one root, say:
[tex]m=1[/tex]
Thus:
[tex]n=6-1=5[/tex]
Finally, the answer is:
[tex]f(x)=(x-1)(x-5)[/tex]
The graph of this function is shown in the figure below.
[tex](1) \ f(x)=ax^{2}+bx+c \\ \\ where \ a, b, c \ are \ real \ values[/tex]
So the problem asks for two conditions:
1. Write the quadratic function in factored form.
2. The vertex has an x-coordinate of 3.
Then the equation (1) must be written as follows:
[tex]f(x)=(x-m)(x-n) \\ \\ where \ m \ and \ n \ are \ the \ roots[/tex]
To satisfy the two conditions:
[tex]\frac{m+n}{2}=3[/tex]
So we are free to choose the value of one root, say:
[tex]m=1[/tex]
Thus:
[tex]n=6-1=5[/tex]
Finally, the answer is:
[tex]f(x)=(x-1)(x-5)[/tex]
The graph of this function is shown in the figure below.

Answer:
answer below
Step-by-step explanation:
The vertex lies on the axis of symmetry, so the axis of symmetry is x = 3. Find any two x-intercepts that are equal distance from the axis of symmetry. Use those x-intercepts to write factors of the function by subtracting their values from x. For example, 2 and 4 are each 1 unit from x = 3, so f(x) = (x – 2)(x – 4) is a possible function.