Pertanyaan
Apabila diketahui f(×)=p×+q,f(-1)=-5 dan f(4) maka nilai f(-6) adalah... Jawab sama pakek caranya ya!!makasih
Ditanyakan oleh: USER4685
109 Dilihat
109 Jawaban
Jawaban (109)
f(-1) = -5
-p + q = -5
f(4) = 5
4p + q = 5
eliminasi
-p + q = -5
4p + q = 5
--------------- _
-5p = -10
p = -10/-5 = 2
-(2) + q = -5
q = -5 + 2
q = -3
f(x) = 2x - 3
f(-6) = 2(-6) - 3 = -12 - 3 = -15
-p + q = -5
f(4) = 5
4p + q = 5
eliminasi
-p + q = -5
4p + q = 5
--------------- _
-5p = -10
p = -10/-5 = 2
-(2) + q = -5
q = -5 + 2
q = -3
f(x) = 2x - 3
f(-6) = 2(-6) - 3 = -12 - 3 = -15