Final answer:
To solve for the function f(x) = 3x - 12 at the given points, we substitute the x values into the function and simplify to find f(8) = 12, f(-5) = -27, and f(-4) = -24.
Step-by-step explanation:
To find the value of the function f(x) = 3x - 12 at different values of x, we substitute the given x values into the function and perform the algebraic operations.
- f(8): Replace x with 8 in the function to get f(8) = 3(8) - 12 = 24 - 12 = 12.
- f(-5): Replace x with -5 in the function to get f(-5) = 3(-5) - 12 = -15 - 12 = -27.
- f(-4): Replace x with -4 in the function to get f(-4) = 3(-4) - 12 = -12 - 12 = -24.
Therefore, the values of the function at the given points are f(8) = 12, f(-5) = -27, and f(-4) = -24.