slope of tangent line?

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What is the slope of the tangent line to the graph of y=f(x) at the x = a = 2, i.e., at the point (2, [ 1/2]) ?

2007-09-20 17:43:36 · 4 answers · asked by Lauren 1 in Science & Mathematics ➔ Mathematics

zero. If y is NOT a function of x, the tangent line is the same as the horizontal line x=2.

2007-09-20 17:51:57 · answer #1 · answered by cattbarf 7 · 1⤊ 1⤋

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2014-07-21 23:55:28 · answer #2 · answered by Anonymous · 0⤊ 0⤋

actually horizontal lines belong to the y=c family, vertical lines are x=c, and therefore the slope (tangent line, or derivative) in undefined.

2007-09-21 00:57:29 · answer #3 · answered by intrepid_mesmer 3 · 0⤊ 1⤋

Are you working with parametric equations?

2007-09-21 00:53:03 · answer #4 · answered by Zin 2 · 0⤊ 1⤋