What Is The X-Coordinate Of The Vertex Of The Parabola Whose Equation Is Y = 3x2 + 12x + 5?, X = -4 , X = -3, X = -2

What is the x-coordinate of the vertex of the parabola whose equation is y = 3x2 + 12x + 5?

x = -4
x = -3
x = -2

y = 3x² + 12x + 5

To get its x-coordinate of the vertex you have to follow this equation

x = -b/2a

Where

a = 3

b = 12

Just substitute them

x = -b/2a

x = -12/2(3)

x = -12/6

x = -2 is the x-coordinate of the vertex


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