f(x) = 9x² + 78
f(5) = 9(5)² + 78
= 9(5×5) + 78
= 9(25) + 78
= 225 + 78
= 303
Kalau salah report aja kaka
[tex]\boxed{\sf{{ \bf{f(x) \: = \: {9x}^{2} \: + \: 78 }}}}[/tex]
[tex]{\sf{1.) \: f(x) \: = \: 9 {x}^{2} \: + \: 78}}[/tex]
[tex]{\sf{f(5) \: = \: 9({5}^{2}) \: + \: 78}}[/tex]
[tex]{\sf{f(5) \: = \: 9(5 \: \times \: 5) \: + \: 78}}[/tex]
[tex]{\sf{f(5) \: = \: 9(25) \: + \: 78}}[/tex]
[tex]{\sf{f(5) \: = \: 225 \: + \: 78 }}[/tex]
[tex]\boxed{\sf{{ \bf{f(5) \: = \: 303}}}}[/tex]
_________________________________________
[tex]{\sf{Jadi, nilai \: dari \: f(5) adalah \:\boxed{\sf{{ \bf{303}}}} }}[/tex]
Mapel : Matematika
Kelas : 8 SMP
Materi : Relasi dan Fungsi
Kode Soal : 2
Kode Kategorisasi : 8.2.2
Kata Kunci : Nilai dari f(5)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
f(x) = 9x² + 78
f(5) = 9(5)² + 78
= 9(5×5) + 78
= 9(25) + 78
= 225 + 78
= 303
Kalau salah report aja kaka
[tex]\boxed{\sf{{ \bf{f(x) \: = \: {9x}^{2} \: + \: 78 }}}}[/tex]
[tex]{\sf{1.) \: f(x) \: = \: 9 {x}^{2} \: + \: 78}}[/tex]
[tex]{\sf{f(5) \: = \: 9({5}^{2}) \: + \: 78}}[/tex]
[tex]{\sf{f(5) \: = \: 9(5 \: \times \: 5) \: + \: 78}}[/tex]
[tex]{\sf{f(5) \: = \: 9(25) \: + \: 78}}[/tex]
[tex]{\sf{f(5) \: = \: 225 \: + \: 78 }}[/tex]
[tex]\boxed{\sf{{ \bf{f(5) \: = \: 303}}}}[/tex]
_________________________________________
[tex]{\sf{Jadi, nilai \: dari \: f(5) adalah \:\boxed{\sf{{ \bf{303}}}} }}[/tex]
_________________________________________
Mapel : Matematika
Kelas : 8 SMP
Materi : Relasi dan Fungsi
Kode Soal : 2
Kode Kategorisasi : 8.2.2
Kata Kunci : Nilai dari f(5)