Question

Find an equation of the tangent line to the function y = 4x4 at the point p(1, 4).

Answer 1

hello : 
f(x) = 4x4
f'(x) = 16x3
f(1) =4
f'(1) = 16
an equation of the tangent line is :  y - 4 = 16(x - 1)