10. 18 points State whether each of the following is a function, if so prove it is onto, and/or one-to-one for f:R + R: (a) f(x) = (4x 7) (b) f(x) = 7x +4 (c) f(x) = 11. 8 points Define the following functions, (assume that the domains/codomains are defined such that each composition is valid) where: f(x) = 4x, g(x) = (1 + x)' h(x) = x2 2 (a) fogoh (b) ho go f