Question: A curve has equation y = 2x + kx 1 and a line has equation x + y + k = 0, where k

A curve has equation y = 2x² + kx − 1 and a line has equation x + y + k = 0, where k is a constant

a) State the value of k for which the line is a tangent to the curve.

b) For this value of k find the coordinates of the point where the line touches the curve.

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