To find the profit function \( P(x) \), we subtract the cost function \( C(x) \) from the revenue function \( R(x) \).
Given:
- Revenue function: \( R(x) = 30x + 155 \)
- Cost function: \( C(x) = 13x + 2 \)
The profit function can be calculated as follows:
\[ P(x) = R(x) - C(x) \] Substituting the given functions:
\[ P(x) = (30x + 155) - (13x + 2) \]
Now, distribute the negative sign in the cost function:
\[ P(x) = 30x + 155 - 13x - 2 \]
Combine like terms:
\[ P(x) = (30x - 13x) + (155 - 2) \] \[ P(x) = 17x + 153 \]
Therefore, the profit function is:
\[ P(x) = 17x + 153 \]
Thus, the correct answer is:
P(x) = 17x + 153