If the tangent line to y = f(x) at (4, 2) passes through the point (0, 1), find f(4) and f '(4)

[Dhanalakshmi]

If the tangent line to y= f (x) at (4,2) passes through the point ( 0,1), find f (4) and f′(4).
f ( 4 ) = _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
f ′ ( 4 ) = _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _