Final answer:
Negative π/8 radians is equal to -22.5 degrees, by multiplying the radian measure by the conversion factor (180°/π).
Step-by-step explanation:
To convert radians to degrees, you can use the conversion factor that π radians is equivalent to 180 degrees. The question asks, "How many degrees is negative startfraction π over 8 endfraction radians?" To find the degree measure, you multiply the radian measure by the conversion factor (180°/π).
For negative π/8 radians, the conversion would be:
(-π/8 radians) × (180°/π) = -22.5°
Therefore, negative π/8 radians is equal to -22.5 degrees.