Final answer:
The y-intercept of the equation -8x + 5y = -31 is (0, -6).
Step-by-step explanation:
The y-intercept of the equation -8x + 5y = -31 can be found by setting x=0 and solving for y. When x=0, the equation becomes 5y = -31, and dividing both sides by 5 gives y = -31/5 or -6.2. Therefore, the y-intercept is (0, -6).