book Maths Puzzle Numerical Ability

I am truly lost...the directions read, write an equation in slope-intercept form of the line that passes through the given point and is parallel to the graph of each equation. the problem reads (2, -7), y=x-2

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book Other Question

In four rounds of a recent golf tournament, Julie shot 3 under par, 2 over par, 4 under par, and 1 under par. What was her score for the tournament? Find the nth term formula for the geometric sequence whose first term is 18 and whose second term is 9.