Suppose f(x) is given.

Suppose point (a,b) is a point on the function f(x).

suppose line L1 is a tangent line to f(x) at point (a,b). Note: tangent line to a function is a line that touches the function at only one point.

1- What is the slope of the tangent line L1 described above (give an expression for the answer).

2- suppose slope of this tangent line L1 is m. What is equation of this tangent line (give an equation for the answer).

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