and \((0,3)\text{.}\) For what values of the constant \(k\) is this conic section an ellipse? Now assume that \(k\) has the value in the middle of the interval found in part (a). Determine the ...

For what values of the constant \(k\) is this conic section an ellipse? Now assume that \(k\) has the value in the middle of the interval found in part (a). Determine the location of the focus and ...