1. Identify the coordinates of points \( P \) and \( Q \): \( P(-3, 1) \), \( Q(8, -6) \).
2. Use the slope formula: \( m = \frac{y_2 - y_1}{x_2 - x_1} \).
3. Substitute \( y_2 = -6 \), \( y_1 = 1 \), \( x_2 = 8 \), \( x_1 = -3 \) into the formula:
m = \frac{-6 - 1}{8 - (-3)}
4. Simplify the subtraction and addition:
m = \frac{-7}{8 + 3}
5. Simplify further:
m = \frac{-7}{11}
The slope of the line is \( \frac{-7}{11} \).