Bella S.

asked • 03/10/17

y = f(x) = √ x the line tangent to f(x) is at the point (4, 2). Find the equation of the tangent line.

According to the answer key, the equation is 1/4x+1  but I don't understand where the 1/4 is coming from. I thought the antiderivative of rootx would be (x^(3/2))/(3/2) which is ultimately x^(1/2). But that doesn't seem to be the right route...

1 Expert Answer

By:

Michael J. answered • 03/10/17

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