Question

x^2+9x-23 what is the vertex?

Answer 1

x=-b/(2a)
x=-9/2 = -4.5
(-4.5,
(-4.5,-43.25)

Answer 2

thanks, and what would the axis of symmetry be?

Answer 3

-4.5

Answer 4

yes, x=-4.5

Answer 5

and it has a maximum?

Answer 6

and where is the maximum located?

Answer 7

like value?

Answer 8

there isnt a max. min = -43.25. it is a parabola

Answer 9

the y value of the vertex is either the max or min depending on whether it opens up or down.
Since a is +1 it open up and -43.25 is the minimum and there is no maximum