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vesna_86 [32]
3 years ago
12

(See diagram) The gradient of the line joining the origin to the point A is 1/2. The distance between A and the origin is sqrt 2

205. What are the coordinates of A?
Mathematics
1 answer:
GuDViN [60]3 years ago
3 0

Answer:

(42, 21) or (–42, –21)

Step-by-step explanation:

let A(x, y), A on line 2y = x

distance

x² + y² = 2205

(2y)² + y² = 2205

y² = 441

y = ±21

x = ±42

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