exam Maths Puzzle Numerical Ability

Can you please help?
The directions are write the equation of a hyperbola with the given characteristics.

1. vertices (1,-3) and (-7,-3) ; foci (2,-3) and (-8,-3)
2. vertice

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exam Other Question

Solve and check:

(x + 1)/6=4/3 The width of a rectangular box is 4 times its height, and its length is 3 ft more than its height. The volume of the box is 49 ft cube. Find the height of the box.

volume = lwh
49 = (4x)(3+x)(x)
49 = 4x3 +12x2