Jawabanmu

  • chen
  • Gemar Membantu
2014-02-09T08:39:07+07:00
1. D=0
b2-4ac=0
(-2p)2-4.1.(-p+4) = 0
4p2 + 4p - 16 = 0 :4
p2 +p - 4 = 0
rumus abc

2. y=a(x-xp)2 +yp
3= a(0- 1)2 + 4
=a+1
a=-1
-1(x-1)2 +4
=
2014-02-09T08:44:59+07:00