Question

Let f(x) = 3x^3 + 2x,

(a) Compute f prime (4) using the limit definition.
(b) Find an equation of the tangent line to the curve y = 3x^3 + 2x at x = 4

Answer 1

for b, i think we could apply differential calculus here. . .

Answer 2

if y prime is equivalent m(slope) given x=4, we could have the slope. . it will be like this. .