WAEC Further Mathematics 2019 Question 9

Question 9

Functions

If g: r → 5 − 2r, r is a real number, find the image of −3.

  1. A.13
  2. B.11
  3. C.−1
  4. D.−9
Show the answer and explanation

Answer: B (11)

Explanation

g(−3) = 5 + 6 = 11.