5. For each of the following assertions, first state whether it is true or false. Then, provide full support for your statement by using theorems, definitions and/or examples where applicable. No marks will be awarded for unsupported statements. (a) The function f(x,y, z) = + 3z + x2 is a linear function. ry (b) Given that the function g(u, v) is an onto function, if f(g(u, v)) = h(u, v), then it logically follows that h(u, v) is always onto. (c) f(x)= x* is a one-to-one function on the subset of its domain where (-5

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