Answer:
2
Step-by-step explanation:
The graph in question is a quadratic graph that has been translated by some units, say, a units. In the transformation language, we say that the graph has been stretched by the factor of 2 like this:
[tex]y = 2 (x-3)^{2} -1[/tex]
It means that the graph of [tex]x^{2}[/tex] has been moved by 3 units to the right, stretched by the stretch factor of 2 and moved downwards on y-axis by 1 unit.
