Please help me!..............
2 answers:
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Answer:
On the circle
Step-by-step explanation:
The equation of a circle centred at the origin is
x² + y² = r² ( r is the radius )
The radius is the distance from the centre to a point on the circle.
To calculate r use the distance formula
r = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (- 6, )
r =
= =
Hence
x² + y² = ()²
x² + y² = 73 ← equation of circle
Substitute (8, 3) into the left side of the equation and
value < 73 → lies inside circle
value = 73 ← lies on the circle
value > 73 ← lies outside circle
(8, 3) → 8² + 3² = 64 + 9 = 73
(8, 3) lies on the circle