Question 2 0 / 1 pts What is the O (h2 ) backward difference approximation of the first derivative? None Of' (ac) = 3f (2) - 4f 2-2+f(x-h) h + 0 (h2 ) Of' (a) = 8 f ( x th) - f(x-h)]-f(x+2h)+f(x-2h) 12h + 0 (h4 ) f' (x) = -3f (2) + 4f (x + h) - f(x+ 2h) + 0 (h2) O f' ( 20 ) - 3 f ( 2 + 2 ) - 1 ( 20 - ; ) ] - f( x th ) + f (2 -h ) 6h + 0 (h4 ) Of' (x) = 3f(2) -4f(2-2h) + f(x-4h) 4h + 0 (h2 ) Of ( x ) = f( ath) -2f(2) + f(x-h) h2 + 0 (h2 )