(a)

The function is $\"\"$ and the point is $\"\"$ .

$\"\"$ .

Differentiate on each side with respect to $\"\"$ .

$\"\"$

Slope of the tangent line is derivative of the function at the given point.

Find the derivative of the function at $\"\"$ .

$\"\"$

Find the tangent line at $\"\"$ .

Point slope form of line equation: $\"\"$ .

Substitute $\"\"$ and $\"\"$ in the above formula.

$\"\"$

The tangent line equation is $\"\"$ .

(b)

Graph of the curve $\"\"$ and tangent line $\"\"$ .

$\"\"$

(a) The equation of a tangent line $\"\"$

(b) Graph of the curve $\"\"$ and tangent line $\"\"$

$\"\"$ .