ATTACH WORK EMAIL PROFESSOR If f(x) = x' + 3er, find f'(4) f' ( 4 ) = Use this to find the equation of the tangent line to the curve y = 5 + 3er at the point (a, f(a)) when a = 4. The equation of this tangent line can be written in the form y = ma + b. Find m = and b. m b