exam Maths Puzzle Numerical Ability

Please help me solve this question.

Find the equation of each line. Write the equation using function notation.

Through (-4,8); perpendicular to 2x - 3y = 1

Thanks.

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exam Other Question

subtract & simplify

3/x-2-1/x+1 The attached link contains a graph of the polynomial function y = f(x). For which of the values k = 0, 1, 2 or 3 will the equation f(x) = k have complex roots?
http://s227.photobu