Algebra-1

To determine which equation has a vertex of (-1, 5), we can calculate the vertex for each quadratic equation using the vertex formula:

Vertex Formula

For a quadratic equation in the form , the x-coordinate of the vertex is given by:

 

Evaluating Each Option

A.

a = 2, b = 4

Calculate the x-coordinate:

Find the y-coordinate:

 

B.

a = -3, b = 6

Calculate the x-coordinate: