Find each function value. 1. f (9) if f (x) = -3x+10

2. f (-2) if f (x) = 4x-1

3. f (-5) if f (x) = -2x+8

Put the values of x to the equations of the functions:

1. f (9) → x = 9; f (x) = - 3x + 10

f (9) = - 3 (9) + 10 = - 27 + 10 = - 17

2. f (-2) → x = - 2; f (x) = 4x - 1

f (-2) = 4 (-2) - 1 = - 8 - 1 = - 9

3. f (-5) → x = - 5; f (x) = - 2x + 8

f (-5) = - 2 (-5) + 8 = 10 + 8 = 18