jika S(x)=7-3x. Tentukan nilai : a) S(3) b) S(-4) c) S(a-5)

Question

Matematika Diposting : 2018-03-21 Diupdate : 2021-08-16 erinaah0303

Pertanyaan

jika S(x)=7-3x. Tentukan nilai : a) S(3)
b) S(-4)
c) S(a-5)

Answer 1

[tex]s(3) = 7 - 3( 3) = 7 - 9 = - 2[/tex]
[tex]s( - 4) = 7 - 3( - 4) = 7 + 12 = 19[/tex]
[tex]s(a - 5) = 7 - 3(a - 5) = 7 - 3a + 15 = 22 - 3a[/tex]

Answer 2

a) S(3) = 7 - 3 ( 3 )
= 7 - 9
= - 2

b) S ( -4) =7 -3 ( -4)
= 7 + 12
= 19

c) S(a-5) = 7 - 3 (a-5)
= 7 - 3a+15
= 22 - 3a