Answer:
-3
Step-by-step explanation:
The y-axis is the vertical line where x=0. That vertical line crosses the green curve at y = -3, so ...
y = f(0) = -3 . . . for x=0
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The point (0, f(0)) is called the y-intercept of the curve. It is where the curve crosses the y-axis.
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Comment on this problem statement
Of course, the axes are not labeled on this graph, so we don't actually know that this is correct. Conventionally, the x-axis is the horizontal axis, and the y-axis is the vertical axis. If you make the assumption that is the case here, then the above answer falls out. If you take the graph at face value, there is insufficient information to answer the question.
