Final answer:
To find the value of a function for a given input, substitute the input into the function and simplify.
Step-by-step explanation:
In this question, we are given three functions: f(x) = 10x - 1, g(x) = -5x + 13, and h(x) = x^2 - x - 12. We need to find the value of each function for a given input.
a) To find f(-2), we substitute -2 into the function f(x) and simplify: f(-2) = 10(-2) - 1 = -20 - 1 = -21.
b) To find g(1), we substitute 1 into the function g(x) and simplify: g(1) = -5(1) + 13 = -5 + 13 = 8.
c) To find h(3), we substitute 3 into the function h(x) and simplify: h(3) = (3)^2 - 3 - 12 = 9 - 3 - 12 = -6.