Final answer:
The y-intercept of the line y = -15/8x + 9 is 9.
Step-by-step explanation:
The y-intercept represents the point where the line intersects the y-axis, which occurs when x = 0.
In this equation, the constant term is 9, so the y-intercept is the point (0, 9) in coordinate form.
Therefore, the y-intercept of the line y = -15/8x + 9 is 9.
In this case, the line has a negative slope of -15/8, which means for every increase of 1 unit on the horizontal axis (x-axis), the line decreases by 15/8 units on the vertical axis (y-axis).