The peaks and valleys of a graph. For a parabola, the vertex is the max (if opening down) or min (if opening up).
Try it
Find min of y = x² − 4x + 7
Vertex at x = −b/2a = 2. y(2) = 4 − 8 + 7 = 3. Min is (2, 3).
The peaks and valleys of a graph. For a parabola, the vertex is the max (if opening down) or min (if opening up).
Find min of y = x² − 4x + 7
Vertex at x = −b/2a = 2. y(2) = 4 − 8 + 7 = 3. Min is (2, 3).