Vertex form quadratics

Identify the values of a, h, and k in the vertex form equation $$(x+4)^2-3$$ .

What transformation occurs when changing the quadratic parent function $$y=x^2$$ to $$y=-3x^2$$ ?

What effect does multiplying $$x^2$$ by a negative number have on the graph?

Identify the values of a, h, and k in the equation $$2(x+4)^2-1$$ .

How does the graph of $$f(x) = 3x^2 - 1$$ change when it becomes $$g(x)=(x - 2)^2$$ ?

What is the vertex form of a quadratic equation?

What does the 'a' value in vertex form indicate about the graph?

How does a positive 'a' value affect the graph of a quadratic function?

How does a negative 'a' value affect the graph of a quadratic function?

What is the significance of the 'h' value in vertex form?