Question

What is the vertex of the graph shown below y=x^2+6x+5

Answer 1

x coordinate of the vertex:

use the
`(-b)/(2a)` formula to get

`x = (-6)/(2) = -3`

y coordinate of the vertex:

plug the x value in the parabola:

`y(3) = (-3)^2+6(-3)+5 = 9-18+5=-4`

So, the vertex lies at
`(-3, -4)`