Find the equation of the tangent line to f(x)=x2f(x) = x^2f(x)=x2 at x=2x = 2x=2.
y=4x−4y = 4x - 4y=4x−4
y=2xy = 2xy=2x
y=4x+4y = 4x + 4y=4x+4
y=x+2y = x + 2y=x+2