Why is vertex from important?

The vertex form of a quadratic function is an expression that easily provides the coordinates of the vertex point on the parabola. The vertex point is the extreme point on a parabola. If the quadratic term is positive, the parabola opens up, therefore the vertex is a minimum point.

Step-by-step explanation:

correct answer:

a + bi

a = 11 : 4

b = 38

c = 1 for every 6