" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
f(-3)=9
f(-3)= a.(-3)+15=9
f(-3)= -3a+15=9
f(-3)=-3a=9-15
-3a=-6
a=-6/-3
a=2