Function g is a transformation of the parent function f(x) = x2. The graph of g is a translation right 3 units and down 5 units of the graph of f. What is the equation of function g written in the form y = ax2 + bx + c?

A. y=x^2+10x+22
B. y=x^2+6x+4
C. y=x^2-6x+4
D. y=x^2-6x+14

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Step-by-step explanation:

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Here we have a problem with translations.

We will find that the correct option is C: g(x) = x^2-6x+14

We can define:

Horizontal translation:

For a general function f(x) an horizontal translation of N units is written as:

g(x) = f(x + N)

If N is positive, the shift is to the left

If N is negative, the shift is to the right.

Vertical translation:

For a general function f(x) a vertical translation of N units is written as:

g(x) = f(x) + N

If N is positive, the shift is upwards

If N is negative, the shift is downwards.

Here we know that:

Function g(x) is a transformation of f(x) = x^2

First, we apply a translation to the right of 3 units, then at the moment we have:

g(x) = f(x - 3)

Then we translate the graph down 5 units, then:

g(x) = f(x - 3) - 5

Now we can replace it by the actual function to get:

g(x) = (x - 3)^2 - 5

      =  x^2 - 2*3*x + 9 - 5

      = x^2 - 6x + 4

Then the function is:

g(x) = x^2 - 6x + 4

Thus the correct option is C.

If you want to learn more, you can read:

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