minimum value of quadratic functions - graphs - What is the minimum value of the quadratic function?

Sangeetha Pulapaka (last edited 1 year ago) (Expert, Educator @Qalaxia)

STEP 1:Recall what is a parabola and when does a parabola open upwards or downwards

The minimum of a quadratic function is the lowest point of the parabola

In the graph shown the minimum is

When the parabola opens upward we have a minimum value

The minimum value is the x-coordinate of the vertex which is -1.