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"Solve each equation:

1. If f(x) = 3x - 12 what is the value when f(8)
and f(-5)
and f(-4)

1 Answer

2 votes

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.

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