exam Maths Puzzle Numerical Ability

What is the y-coordinate of the vertex of a parabola with the following equation?

y = x^2 - 6x + 14

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exam Other Question

Evaluate if r=1/2
(r-3)(r)(r+3)
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(r-2)(r+2)


If anyone can answer this question I would appreciate it very much. Please and Thank You
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