Question
\[ f(x) = 3x + 4 \quad g(x) = 2x - 3 \] \[ \text{Find: } f \circ g(x) \]
Ask by Malone Ingram. in South Africa
Feb 22,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
f ∘ g(x) = 6x − 5
Solution
We are given the functions:
f(x) = 3x + 4
g(x) = 2x − 3
To find the composition f ∘ g(x), substitute g(x) into f(x):
f(g(x)) = 3(2x − 3) + 4
Now, simplify the expression:
= 6x − 9 + 4
= 6x − 5
Thus, f ∘ g(x) = 6x − 5.
Answered by UpStudy AI and reviewed by a Professional Tutor
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Mind Expander
To find \( f \circ g(x) \), which is the composition of the functions \( f \) and \( g \), we need to substitute \( g(x) \) into \( f(x) \). 1. Start by finding \( g(x) \): \[ g(x) = 2x - 3 \] 2. Now substitute \( g(x) \) into \( f(x) \): \[ f(g(x)) = f(2x - 3) = 3(2x - 3) + 4 \] 3. Simplify the expression: \[ = 6x - 9 + 4 \] \[ = 6x - 5 \] Thus, \( f \circ g(x) = 6x - 5 \).