飛航百科

標題:

F.4 FUNCTIONS

• VERY DIFFICULT GEOMETRY Q1
• 股票機中 --s 及+-s 代表什麼
• 作一篇關於A Wonderful Festival

此文章來自奇摩知識+如有不便請留言告知

發問:

LET F(X)=PX+Q,WHERE P AND Q ARE CONSTANTS. IT IS GIVEN THAT F(10)=-1 AND F(14)=-2 SOLVe THE EQUATION F(4X+8)= 5/2 江湖救急 更新: 5/2 = -(4X+8)/4 + 3/2 是怎樣化出來的??

最佳解答:

LET F(X)=PX+Q,WHERE P AND Q ARE CONSTANTS. IT IS GIVEN THAT F(10)=-1 AND F(14)=-2 -1 = 10P + Q ----(1) -2 = 14P + Q ----(2) (1)-(2), 1 = -4P P = -1/4 Sub P = -1/4 into (1) -1 = -10/4 + Q Q = 3/2 SOLVe THE EQUATION F(4X+8)= 5/2 5/2 = -(4X+8)/4 + 3/2 1 = -(4x+8)/4 -4 = 4x + 8 4x = -12 x = -3

其他解答: