New Topic: The Circle
By the end of this topic you will:
• know that the equation of the circle centre (a,b) and radius r is (x – a)² + (y – b)² = r²
• know that x² + y² + 2gx + 2fy + c = 0 represents a circle centre (–g, –f) and
radius r = √(g² + f² – c), provided g² + f² – c > 0
• be able to determine the equation of a circle
• be able to solve problems with the intersection of a line and a circle,
and a tangent to a circle
• be able to determine whether two circles touch each other
Homework: Circles Set2
Due: Monday 7th December
ALL pupils should be able to complete Q1 – 4
MOST pupils should be able to complete Q7
SOME pupils should be able to complete Q6
DO NOT DO Q5
🙂
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