The lowest point is y = 0 when x = 0.
All other values of y are greater than zero for any other value of x
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That's true at the point (0.5, 0.25) where the slope of the graph is ' 1 ' .
the graph is moved down 6 units
The graph is a parabola facing (opening) upwards with the vertex at the origin.
One. It is a double root.
y=x2-4x+4 y = (x-2)(x-2) x=2 the graph only crosses the x-axis at positive 2. this is the minimum of the graph and the only point that is crosses the x-axis.