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Tell me what the letters A, H, and K stand for in the vertex form.
Vertex Form of a Quadratic Function
f(x) = a(x-h)2+k
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VectorFundament120

Greetings.

The answer is

a = determines the shape of parabola (upward, downward, narrow or wide)

h = determines the transformation of the graph for x-axis (For example, (x+1)², the graph would move from x=0 to x=-1

k = determines the transformation of the graph for y-axis. (For example, x²+1, the graph would move from y = 0 to y = 1.

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