To find the slope \( m \) between two points \((x_1, y_1)\) and \((x_2, y_2)\), we use the formula:
\[ m = \frac{y_2 - y_1}{x_2 - x_1} \]
Given the points \((9, 2)\) and \((3, 8)\):
- \( (x_1, y_1) = (9, 2) \)
- \( (x_2, y_2) = (3, 8) \)
Now we can substitute the values into the slope formula:
\[ m = \frac{8 - 2}{3 - 9} \]
Calculating the numerator and denominator:
\[ m = \frac{6}{3 - 9} = \frac{6}{-6} = -1 \]
Thus, the slope between the points \((9, 2)\) and \((3, 8)\) is:
\[ \boxed{-1} \]