216k views
3 votes
MULTIPLE CHOICE Choose the one alternative that best completes the statement or answers the question.

For the given functions f and g, find the requested composite function value f(x) = g(x) = x² + 9; Find (g ∘ f)(-2) A) 145 B) 25 C) 13
For the given functions f and g, find the requested composite function. f(x) = √(x + 10), g(x) = 8x - 14; Find (f - g)(x) A) √(2x - 10) B) √(x+ 10 - 14) C) √(2x - 4) D) √(x - 4)

User Mote Zart
by
8.4k points

3 Answers

2 votes

Final answer:

The composite function (g ∘ f)(-2) equals 178, which is not among the provided options, potentially due to an error in the question. Similarly, for the function operation (f - g)(x), the result is √(x + 10) - 8x + 14, which does not match the given choices, suggesting a possible mistake in the question or choices.

Step-by-step explanation:

The mathematics question asks for the computation of composite functions and function operations for given functions f(x) and g(x). In the first part of the question, we are given f(x) = g(x) = x² + 9 and asked to find (g ∘ f)(-2). To find this, we first compute f(-2), and then use that result as the input for g.

f(-2) = (-2)² + 9 = 4 + 9 = 13
g(f(-2)) = g(13) = 13² + 9 = 169 + 9 = 178

So the answer is not listed in the provided choices, indicating there may be a typo or mistake in the question.

In the second part, we are asked to find (f - g)(x) with f(x) = √(x + 10) and g(x) = 8x - 14. The operation (f - g)(x) implies subtracting g(x) from f(x). Therefore:

(f - g)(x) = √(x + 10) - (8x - 14) = √(x + 10) - 8x + 14
This expression does not match any of the provided choices, indicating there may be an error in the question or the choices provided.

User Onusopus
by
9.2k points
5 votes

Final answer:

The composite function (g ∘ f)(-2) equals 178, which is not among the provided options, potentially due to an error in the question. Similarly, for the function operation (f - g)(x), the result is √(x + 10) - 8x + 14, which does not match the given choices, suggesting a possible mistake in the question or choices.

Step-by-step explanation:

The mathematics question asks for the computation of composite functions and function operations for given functions f(x) and g(x). In the first part of the question, we are given f(x) = g(x) = x² + 9 and asked to find (g ∘ f)(-2). To find this, we first compute f(-2), and then use that result as the input for g.

f(-2) = (-2)² + 9 = 4 + 9 = 13
g(f(-2)) = g(13) = 13² + 9 = 169 + 9 = 178

So the answer is not listed in the provided choices, indicating there may be a typo or mistake in the question.

In the second part, we are asked to find (f - g)(x) with f(x) = √(x + 10) and g(x) = 8x - 14. The operation (f - g)(x) implies subtracting g(x) from f(x). Therefore:

(f - g)(x) = √(x + 10) - (8x - 14) = √(x + 10) - 8x + 14
This expression does not match any of the provided choices, indicating there may be an error in the question or the choices provided.

User Krico
by
7.9k points
0 votes

Final answer:

The composite function (g ∘ f)(-2) equals 178, which is not among the provided options, potentially due to an error in the question. Similarly, for the function operation (f - g)(x), the result is √(x + 10) - 8x + 14, which does not match the given choices, suggesting a possible mistake in the question or choices.

Step-by-step explanation:

The mathematics question asks for the computation of composite functions and function operations for given functions f(x) and g(x). In the first part of the question, we are given f(x) = g(x) = x² + 9 and asked to find (g ∘ f)(-2). To find this, we first compute f(-2), and then use that result as the input for g.

f(-2) = (-2)² + 9 = 4 + 9 = 13
g(f(-2)) = g(13) = 13² + 9 = 169 + 9 = 178

So the answer is not listed in the provided choices, indicating there may be a typo or mistake in the question.

In the second part, we are asked to find (f - g)(x) with f(x) = √(x + 10) and g(x) = 8x - 14. The operation (f - g)(x) implies subtracting g(x) from f(x). Therefore:

(f - g)(x) = √(x + 10) - (8x - 14) = √(x + 10) - 8x + 14
This expression does not match any of the provided choices, indicating there may be an error in the question or the choices provided.

User TotPeRo
by
9.4k points

No related questions found