# The tangent line

Find the tangent line of the ellipse 9x

^{2}+ 16y^{2}= 144 that has the slope k = -1.### Correct answer:

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The line slope calculator is helpful for basic calculations in analytic geometry. The coordinates of two points in the plane calculate slope, normal and parametric line equation(s), slope, directional angle, direction vector, the length of the segment, intersections of the coordinate axes, etc.

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Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?

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