Please solve this question?

Identifying a Parabola Using Rotation of Axes

(a) Use rotation of axes to show that the following equation
represents a parabola. 2 √2(x + y)^2 = 7x + 9y

(b) Find the XY- and xy-coordinates of the vertex and focus.

(c) Find the equation of the directrix in XY- and xy-coordinates.
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