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```
If |z|=2 the -1+5z lie on 1)parabola. 2)hyperbola. 3)circle

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4 years ago

Vikas TU
13783 Points
```							put z = x+ iy wwe get,x^2 + y^2 = 4...........................(1)The coordinate -1 + 5z becomes,(5x – 1, 5y)put it in eqn. (1) we get,(5x – 1)^2 + (5y)^2 = 425x^2 + 1 – 10x + 25y^2 = 425(x^2 + y^2)  – 10x – 3 = 0x^2 + y^2 -2x/5 – 3/25 = 0Hence the point lies on circle.
```
4 years ago
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