Question

A function f is defined by f(x) = 2x - 5. Write down the values of:

1. f(0)
2. f(7)
3. f(-3)

Answer 1

The given function is f(x) = 2x - 5.
Therefore,
(i) f(0) = 2 x 0 - 5 = 0 - 5 = -5
(ii) f(7) = 2 x 7 - 5 = 14 - 5 = 9
(iii) f(-3) = 2 x (-3) - 5 = - 6 - 5 = -11