exam Maths Puzzle Numerical Ability

Please help with problem. It comes from a homework sheet. Thank you.

Find the vertex of the parabola and determine whether the parabola opens upward, downward, to the left, or to the right.

15.) y = -(x+2)2 to the second power + 2

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exam Other Question

two consecutive angles of a quadrilateral are right angels, but the quadrilateral is not a rectangle. can the quadrilateral be a parallelogram?explain

(2+3i)+(-2-3i)