Anyone can help me with it?

f[((5)] = g(5) = root of 5+7= root of 12

then f[( g(5)] = (root of 12 _ 3 )^2 = 12-9 =3

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: