c_james
Viva La Merchandise!
- Joined
- Mar 15, 2004
- Messages
- 512
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- Male
- HSC
- 2005
Any help with this one would be much appreciated:
The parabola y = ax² + bx + c (where c does not equal 0) meets the x axis at A(α, 0) and B(β, 0) and the y-axis at C. If AC and BC are perpendicular, prove that AC = -1.
The parabola y = ax² + bx + c (where c does not equal 0) meets the x axis at A(α, 0) and B(β, 0) and the y-axis at C. If AC and BC are perpendicular, prove that AC = -1.