A circle with centre Chas equation x + y + 8x + 4y 5 = 0.
Question:
A circle with centre Chas equation x² + y² + 8x + 4y − 5 = 0.
a) Find the coordinates of C and the radius of the circle.
b) A(0, −5) and B(0,1) lie on the circle. Find the equation of the line perpendicular to AB which goes through B.
c) Show that this line goes through the
other end of the diameter through A.
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a To find the coordinates of the center we need to complete the square for x and y x 8x y ...View the full answer
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Related Book For
Complete Pure Mathematics 1 For Cambridge International AS & A Level
ISBN: 9780198427438
2nd Edition
Authors: Jean Linsky, Brian Western, James Nicholson
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