Functions and Models - Essay Example

Functions and Models Which of the following are functions? The last two problems, i.e., b & c, are multi part relations consider all parts when determining whether or not these relations are functions. Explain your reasoning for a, b, and c. a. f(x) = x + 5 (a) is a function, as the f(x) returns a distinct output for every value of x.b. f(x) = 3 if x>2 otherwise f(x) = -2 (b) is also a function, as the output is distinct for every input value of x. It is clear that f(x) will be 3 for all values above 2 and will be equal to -2 for all other values of x.c. f(x) = 7 if x>0 or f(x) = -7 if x