exam Maths Puzzle Numerical Ability

Here is yet another one I got a wrong answer to...I got 6.

(2 + SQRT<2>)(2 + SQRT<2>)

Thanks!

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exam Other Question

how do you solve a problem with an ellipse when the center shifts off of (0,0). where does the a^2 and b^2 come from on the equation: (x-h)^2 over a^2 + (y-k)^2 over b^2 [which all =1]? Can someone help me on this problem?

I need to write the equation of the line passing through the given pairs of points. I need to write the result in slope-intercept form, where possible:

(2, -3) and (2, 4)

Thanks,
Ashley