KATEABELONIN KATEABELONIN Math Answered Solve for the value of the function using the given value of x.21. f(x) = -2x, when x is - 1.22. f(x) = 5x - 5, when xiz - 3. 23. f(x) = -3x +3, when x is 4. 24. f(x) = 2x + 2, when is x 0. 25. f(x) = - + 2x, when x is 2.