In a quadratic expression of the form \( ax^2 + bx + c \), the coefficients are identified as follows:
- \( a \) is the coefficient of \( x^2 \)
- \( b \) is the coefficient of \( x \)
- \( c \) is the constant term
For the expression \( -2x^2 + 3x - 8 \):
- The coefficient \( a \) is \(-2\).
- The coefficient \( b \) is \(3\).
- The coefficient \( c \) is \(-8\).
Thus, the correct list of coefficients is:
\[ (-2, 3, -8) \]