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Consider F(x) = -2x^2 + 6. Which function describes the result of transforming through a reflection over the x-axis and a horizontal shift to the rightA.) G(x) = -2(x-1)^2 + 6B.) G(x) = 2(x-3)^2 + 6C.) H(x) = 2(x-5)^2 - 6D.) J(x) = -2(x+4)^2 + 6

Sagot :

To answer this question, we need to remember that:

1. If a function has been reflected in the x-axis, we have:

[tex]-f(x)[/tex]

2. If a function has been translated by h units to the right, we have:

[tex]f(x-h)[/tex]

Therefore, if we have these two transformations on the function:

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

Then, if we apply the two transformations above, we have:

1. Reflection over the x-axis:

[tex]F(x)=-2x^2+6\Rightarrow-F(x)=-(-2x^2+6)[/tex]

Therefore

[tex]-F(x)=2x^2-6[/tex]

2. If we translate the function h units to the right, then we have:

[tex]-F(x-h)=2(x-h)^2-6[/tex]

If we observe the options, we have that if we translate the function 5 units to the right, we have:

[tex]-F(x-5)=2(x-5)^2-6[/tex]

In summary, therefore, we have that the function which describes the resulting transformation is:

[tex]H(x)=2(x-5)^2-6[/tex]

[Option C.]

We can see this in the following graph: the red parabola is the original function. The green parabola is the result of the transformation:

View image EricssonH125571
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