9 The points \(P\) and \(Q\) have coordinates ( \(- 6,15\) ) and (12, 19) respectively.
9
- Find the coordinates of the midpoint of \(P Q\)
9
- (ii) Find the equation of the perpendicular bisector of \(P Q\)
Give your answer in the form \(a x + b y = c\) where \(a , b\) and \(c\) are integers.
[0pt]
[4 marks]
9 - A circle passes through the points \(P\) and \(Q\)
The centre of the circle lies on the line with equation \(2 x - 5 y = - 30\)
Find the equation of the circle.
9
- (ii) The circle intersects the coordinate axes at \(n\) points.
State the value of \(n\)
$$y = \sin x ^ { \circ }$$
for \(- 360 \leq x \leq 360\) is shown below.
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