Final answer:
The value of f(-1) for the function f(x), given by the set of ordered pairs, is -2, which corresponds to option B.
Step-by-step explanation:
The value of f(-1) for the function f(x) defined by the ordered pairs {(-2,-5),(-1,-2),(0,1),(1,4),(2,7)} can be determined by finding the ordered pair where the first number is -1. The second number in that pair is the value of the function at that point.
Looking at the set of ordered pairs given, we can see the pair that has -1 as its first element is (-1, -2). Therefore, the value of f(-1) is -2.
The correct answer to the question is B. -2.