$$ f(x) = 3x + 4 \quad g(x) = 2x - 3 $$ $$ \text{Find: } f \circ g(x) $$

Question

UpStudy AI · Accepted Answer

To find the composition $$ f \circ g(x) $$, which means $$ f(g(x)) $$, follow these steps:

1. **Identify the functions:**
   $$
   f(x) = 3x + 4 \quad \text{and} \quad g(x) = 2x - 3
   $$

2. **Compute $$ g(x) $$:**
   $$
   g(x) = 2x - 3
   $$

3. **Substitute $$ g(x) $$ into $$ f(x) $$:**
   $$
   f(g(x)) = f(2x - 3) = 3(2x - 3) + 4
   $$

4. **Simplify the expression:**
   $$
   f(g(x)) = 3 \times 2x - 3 \times 3 + 4 = 6x - 9 + 4 = 6x - 5
   $$

**Therefore, the composition $$ f \circ g(x) $$ is:**
$$
f \circ g(x) = 6x - 5
$$
$$ f \circ g(x) = 6x - 5 $$

\[ f(x) = 3x + 4 \quad g(x) = 2x - 3 \] \[ \text{Find: } f \circ g(x) \]