设
A=M(X+1)
B=N/(X+1)
Y=A+B
=M(X+1)+N/(X+1)
把x=0,y=-5和x=2,y=-7分别代入,得:
-5=M+N
-7=3M+N/3
解得:
M=-2
N=-3
Y与X的解析式为:
Y=-2(X+1)-3/(X+1)
设
A=M(X+1)
B=N/(X+1)
Y=A+B
=M(X+1)+N/(X+1)
把x=0,y=-5和x=2,y=-7分别代入,得:
-5=M+N
-7=3M+N/3
解得:
M=-2
N=-3
Y与X的解析式为:
Y=-2(X+1)-3/(X+1)