Question

Help me please. Fan and Medal!

y = 3x2 + 12x + 5.

Answer 1

Identify the vertex for the graph of:

\[y=3x^{2}+12x+5\]

Answer 2

@dumbcow @RadEn

Answer 3

@zepdrix

Answer 4

@tcarroll010 @whpalmer4

Answer 5

the vertex of the that curve at point :
(-b/2a, y(-b/2a))

Answer 6

Yes but how do you solve it since you do not have a GCF?

Answer 7

y=3x^2+12x+5
known a=3, b=12, and c=5
x-vertex = -b/(2a) = -12/(2*3) = -12/6 = -2

Answer 8

OH RIGHT:

\[\frac{ -b }{ 2a }\]

Answer 9

then subtitute x=-2 into y=3x^2+12x+5to get y-vertec
y = 3(-2)^2 + 12(-2) + 5 = 3(4) - 24 + 5 = -7

so, it is (-2,-7)

Answer 10

Right right, I forgot about that formula, thanks a bunch :D

Answer 11

welcome :)