x^2-ky+3=0 represents a parabola whose focus is in (0,2) find k

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- December 17th 2011, 09:08 AMprasumFocus of parabola
x^2-ky+3=0 represents a parabola whose focus is in (0,2) find k

- December 17th 2011, 09:29 AMprincepsRe: parabola
- December 20th 2011, 11:18 AMprasumRe: parabola
can yu tell me what will be the value of k 2 ,4,6 or 3

- December 20th 2011, 11:46 AMSironRe: parabola
What have you tried? Princeps post tell's what you have to do, namely:

The equation of the parabola is:

Therefore we can find by solving the equation:

Proceed.