Răspuns :
f(1)=-9
a-5+3a=-9
4a=5-9
4a=-4
a=-1
f(x)=-x-5-3
f(x) =-x-8
intersectia cu ordonatele x=0 (ecuatia axei ordonatelor, Oy)
f(0)=-8
B(0;-8)
a-5+3a=-9
4a=5-9
4a=-4
a=-1
f(x)=-x-5-3
f(x) =-x-8
intersectia cu ordonatele x=0 (ecuatia axei ordonatelor, Oy)
f(0)=-8
B(0;-8)