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Given f (x) = – 2x^2 + x -3 and g(x) = - x - 2, find the following:

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Given f (x) = – 2x^2 + x -3 and g(x) = - x - 2, find the following:

  1. fog (x) , find the domain  f
  2. fog (1)
  3. gof (x)
  4. gof (-2)
asked Mar 6, 2014 in ALGEBRA 2 by andrew Scholar

1 Answer

0 votes

The functions are image.

To find the image

image

image

image

image

image

image.

Therefore image.

image.

Substitute the values of x is any real number in the function image to obtain different y values. So, the domain of function image is all real numbers.

To find the image

image

image

image

image

image.

Therefore image.

image.

The solutions are image, the domain of function image is all real numbers.

answered Mar 7, 2014 by joly Scholar

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