(a)[3]
Find the equation of the straight line perpendicular to the line $y = \frac{1}{2}x + 1$ that goes through the point $(1, 3)$.
(b(i))[4]
Find the three inequalities that describe the region $R$.
(b(ii))[2]
Find the point $(x, y)$ with integer coordinates that lies inside region $R$ and satisfies $3x + 5y = 35$.