Concept:The minimum value of
y for an upward-opening parabola is the
y-coordinate of its vertex, the lowest point on the curve.
Explanation:The graph is a parabola that opens upward.
The lowest point shown on the diagram is the vertex at
(−2,1).
At this point, the curve reaches its smallest
y-value before rising again.
Therefore, the minimum value of
y is the vertical coordinate of the vertex.
From the vertex
(−2,1), the
y-coordinate is
1.
So the minimum value of
y is
1.
Answer:The minimum value of
y is
1, which corresponds to option B.
