Final answer:
To find (g \circ f)(q - 6), we first apply f to (q - 6) to get f(q - 6) = 3q - 8 and then apply g to get g(f(q - 6)) = -3q + 7 as the simplified final expression.
Step-by-step explanation:
To solve the problem, we need to find (g \circ f)(q - 6), which means we first apply f to (q - 6) and then apply g to the result.
- Begin with the function f(x) = 10 + 3x. Substituting (q - 6) into f, we get f(q - 6) = 10 + 3(q - 6).
- Simplify f(q - 6) to get f(q - 6) = 10 + 3q - 18.
- Further simplify to get f(q - 6) = 3q - 8.
- Now apply the function g(x) = -x -1 to the result from step 3, g(3q - 8).
- Substitute 3q - 8 into g, yielding g(3q - 8) = -(3q - 8) - 1.
- Simplify this to get g(3q - 8) = -3q + 8 - 1.
- The final expression is -3q + 7.