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Given functions f(x) = 2x + 1 and g(x) =...

Given functions `f(x) = 2x + 1 and g(x) = x^(2) - 4`, what is the value of `f(g(-3))`?

A

`-29`

B

`-25`

C

`-19`

D

`11`

Text Solution

AI Generated Solution

The correct Answer is:
To find the value of \( f(g(-3)) \) given the functions \( f(x) = 2x + 1 \) and \( g(x) = x^2 - 4 \), we can follow these steps: ### Step 1: Calculate \( g(-3) \) We start by substituting \(-3\) into the function \( g(x) \). \[ g(-3) = (-3)^2 - 4 \] Calculating \((-3)^2\): \[ (-3)^2 = 9 \] Now substituting back into the equation: \[ g(-3) = 9 - 4 = 5 \] ### Step 2: Calculate \( f(g(-3)) \) Now that we have \( g(-3) = 5 \), we need to find \( f(5) \). Substituting \( 5 \) into the function \( f(x) \): \[ f(5) = 2(5) + 1 \] Calculating \( 2(5) \): \[ 2(5) = 10 \] Now substituting back into the equation: \[ f(5) = 10 + 1 = 11 \] ### Final Answer Thus, the value of \( f(g(-3)) \) is: \[ \boxed{11} \]
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ENGLISH SAT-PRACTICE TEST 4 - MATHEMATICS TEST-EXERCISE
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  11. Parallelogram ABCD is graphed in the standard (x,y) coordinate plane b...

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  12. Parallelogram ABCD is graphed in the standard (x,y) coordinate plane b...

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  13. Parallelogram ABCD is graphed in the standard (x,y) coordinate plane b...

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  14. Parallelogram ABCD is graphed in the standard (x,y) coordinate plane b...

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  15. Which of the following is equivalent to 8^(2) cdot 4^(0.5)?

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