exam Maths Puzzle Numerical Ability

Please help me solve this hyperbola equation.
I need to write it in standard form, firgure out the center, vertices, co-vertices, and the foci. Can you also show me the graph of

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exam Other Question

A rancher plans to use 160 yards of fencing to enclose a rectangular corral and to divide it into two parts by a fence parallel to the shorter sides of the corral. Find the dimensions of the corral if its are is 100yd2. Solve by graphing.

3x + y = 13

x + 6y = -7