Question

What is the minimum value of y = 3x2 + 12x − 4,

Answer 1

-16

Explanation:

The minimum value is at the vertex

The x coordinate of the vertex = -b/2a

X = - 12/6 = - 2

Substituting the value of x in the equation

Y=3(-2)²+12(-2)-4

Y=3(4)-24-4

Y=12-24-4

Y=-16