exam Maths Puzzle Numerical Ability

the graph of this function:
2sin(3x+pi/6)+1

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exam Other Question

Write 36x^2-360x-25y^2-100y=100 in standard form.

I know I am supposed to complete the square, but that is what I am having trouble with. Any help is very much appreciated! Below, the picture represents two parallel lines like the ones of windshields wipers in a car. The slashes represent the parallel lines as best as possible.

_______/__________