Cara menghitung nilai fungsi dari m(s) = 3s - 4 a. m(s - 8 ) = ? b. m(25 + 5 ) = ?

m(s) = 3s - 4

m(s-8) = 3(s-8) - 4
= 3s - 24 - 4
= 3s - 28

m(25+5) = m(30)
= 3(30) - 4
= 90 - 4
= 86