Question

help please !!! y=x^2+5x+6 I need to know the vertex and ordered pair???
Don't understand the formula. Is the vertex -2.5, 4.75? And what is the ordered pair?

Answer 1

the x value of the vertex is -b/2a
where a and b are the numbers in
a x^2 + bx + c

in this case a is 1 (x^2 is the same as 1* x^2 , so a is 1)
b is +5

so the x value of the vertex is - 5/2
use that value for x in the equation to find y

y=x^2+5x+6 with x= -5/2 (or -2.5)
y= (-5/2)^2 + 5* -5/2 + 6
can you do the arithmetic to find the y value of the vertex ?

Answer 2

i dont know how to

Answer 3

is your calculator broken?
you can type that into google and it will figure it out