Function of the given formula (fx) = -3 + 10 find f (-1) f (0) f (1/3).

Notation f (x) – means the rule according to which each specific f should be found depending on x. In this notation: x is an independent variable, and f just depends on it.

The notation f (-1) can be translated as: find f if it is known that x = -1. Or in this formula you need to substitute its value -1 instead of x.

Let’s complete the task:

f (x) = -3x + 10 = -3 * x +10;

f (-1) = -3 • (-1) + 10 = 3 + 10 = 13;

f (0) = -3 • 0 + 10 = 0 + 10 = 10;

f (1/3) = -3 • 1/3 + 10 = -1 + 10 = 9.