please help with these

10. What is the formula of the line tangent to the curve f (:13) : 2x/E at m : 4? Oy=4x+% Oy=2m Oy=4 OIFW'U Oy:%m+2 11. For the function f, f!(:c) = 39:2 Q and f (2) = 5. Find the approximation for f (2.2) by using the line tangent to the graph of f at a: = 2. 12. What formula would be used to calculate a local linear approximation for f (as) : 83x around a: = 1? y = 363:1: * 263 O O y : 83(21) O y = 36333 + e3 O y = 3~'33(ac 1)