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Complete the square to write y = 3x2 + 12x + 7 in vertex form, y = a(x - h)2 + k.
y = 3(x2 + 4x) + 7 y = 3(x2 + 4x +4) + 7 -
When the above expression is written in vertex form, a is _ , h is _ , and k is _.

Respuesta :

MrsStrong

Answer:

a=3

h=-2

k=-5

Step-by-step explanation:

The equation [tex]y=3x^2+12x+7[/tex] writen in vertex form is:

[tex]y = 3(x^2 + 4x) + 7 \\y = 3(x^2 + 4x +4) + 7 - 12\\y=3(x+2)^2-5[/tex]

Answer:

12

3,-2,-5

Step-by-step explanation:

Just got it right on edge

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