Question

If f(x) = 1/2 x^2 - 3, find f(6).

3
15
21
69

Answer 1

Answer:

  15

Step-by-step explanation:

Put 6 where x is and do the arithmetic.

  f(6) = 1/2·6² -3 = 1/2·36 -3

  = 18 -3 = 15