" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
f(-2)=(-4-2)/(-2+4)=-3
f'(x)=[2(x+4)-1*(2x-2)]/(x+4)²=(2x+8-2x+2)/(x+4)²=10/(x+4)²
f'(-2)=10/4=2,5
y+3=2,5(x+2)
y=2,5x+5-3
Odp. y=2,5x+2