Use the Power Rule to find f ′(x) for f(x) = (x + 4)(x − 3) by first expanding f(x). Then, find the equation of the line tangent to f(x) at x = 3. Homework Help ✎
In order to find the equation of the tangent line at x = 3, you will need to find a point on the line and the slope at x =3.
To find a point, evaluate f(3)=_________
To find the slope, evaluate f '(3)= ________
Put it all together in point-slope form: y −y1 = m(x −x1)