Mathematics for IGCSE & O level - Graphs Of Functions (Section 1 - No. 16)
What does the y-coordinate of the vertex of a parabola represent?
The x-intercepts
The axis of symmetry
The maximum or minimum value of the function
The slope of the tangent at that point
คำอธิบาย
The y-coordinate of the vertex is the maximum or minimum value of the function.