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    Exercise 4 Linear Function

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    Catherine Jeane
    During a 3-day vacation in Bali, Gerald visited several tourist attractions with his family. On the first day, he went to Nusa Dua Beach and then Garuda Wisnu Kencana Cultural Park, plotting these locations on a map he created. Gerald also brought incense to worship at Tanah Lot Temple, which decreases in length by about 2 cm every 4 minutes as it burns. He used linear equations to model relationships between variables like temperature and altitude.

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    Exercise 4 Linear Function

    Uploaded by

    Catherine Jeane
    17 views2 pages
    During a 3-day vacation in Bali, Gerald visited several tourist attractions with his family. On the first day, he went to Nusa Dua Beach and then Garuda Wisnu Kencana Cultural Park, plotting these locations on a map he created. Gerald also brought incense to worship at Tanah Lot Temple, which decreases in length by about 2 cm every 4 minutes as it burns. He used linear equations to model relationships between variables like temperature and altitude.

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    During a 3-day vacation in Bali, Gerald visited several tourist attractions with his family. On the first day, he went to Nusa Dua Beach and then Garuda Wisnu Kencana Cultural Park, plotting these locations on a map he created. Gerald also brought incense to worship at Tanah Lot Temple, which decreases in length by about 2 cm every 4 minutes as it burns. He used linear equations to model relationships between variables like temperature and altitude.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    17 views2 pages

    Exercise 4 Linear Function

    Uploaded by

    Catherine Jeane
    During a 3-day vacation in Bali, Gerald visited several tourist attractions with his family. On the first day, he went to Nusa Dua Beach and then Garuda Wisnu Kencana Cultural Park, plotting these locations on a map he created. Gerald also brought incense to worship at Tanah Lot Temple, which decreases in length by about 2 cm every 4 minutes as it burns. He used linear equations to model relationships between variables like temperature and altitude.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 2

    PETRA ACITYA CHRISTIAN JUNIOR HIGH SCHOOL

    EXERCISE
    ACADEMIC YEAR 2023/2024

    Subject Material : Basic Mathematics Day/Date :


    Class : VIII Duration : 60 Minutes

    After struggling through the Midterm Assessment, the school gave students in grades 7-9 2
    days off. Gerald felt very happy because before Midterm his father and mother promised to go on
    vacation to Bali.
    Saturday, October 14, 2023 to Tuesday, October 17, 2023 became a fun holiday for Gerald. He
    and his family visited many tourist attractions there. Until the last day of vacation, they visited one of
    the souvenir centers for the family at home and headed to the airport at 11:00. On that day, the
    temperature in Bali was so hot that it reached 35℃. When the plane took off, Gerald was still looking
    at his cell phone to check the temperature. It turns out that every 1 km increase in airplane, the air
    temperature decreases by 2℃. If the air temperature at x km above the ground is y℃, then :
    (Setelah berjuang menghadapi Penilaian Tengah
    Semester (PTS), Sekolah memberikan waktu libur kepada siswa-
    siswi kelas 7-9 selama 2 hari. Gerald merasa senang sekali
    karena sebelum PTS Ayah dan Ibunya menjanjikan untuk pergi
    berlibur ke Bali.
    Sabtu, 14 Oktober 2023 hingga Selasa, 17 Oktober 2023
    menjadi hari libur yang menyenangkan bagi Gerald. Ia bersama
    keluarganya mengunjungi banyak sekali tempat wisata disana.
    Hingga tibalah di hari terakhir liburan, mereka mengunjungi
    salah satu pusat oleh-oleh untuk keluarga di rumah dan menuju
    ke bandara pada pukul 11.00. Pada hari itu, suhu udara di Bali panas sekali hingga mencapai 35℃.
    Saat pesawat berangkat, Gerald masih melihat handphonenya untuk cek suhu udara di sekitar.
    Ternyata setiap kenaikan pesawat 1 km, suhu udara berkurang sebesar 2℃. Jika suhu udara saat x km
    di atas permukaan tanah adalah y℃, maka :)

    1. Express the relationship between x and y as a linear function equation. (Nyatakanlah


    hubungan antara x dan y ke dalam bentuk persamaan fungsi linear.)

    2. If an airplane reaches an altitude of 11 km above the ground, predict the temperature of the
    surrounding air. (Apabila sebuah pesawat mencapai ketinggian 11 km di atas permukaan
    tanah, prediksikan berapa suhu udara di sekitar.)

    During his 3 days in Bali, Gerald and his family


    visited several famous tourist attractions. Among them are
    Kintamani Highland, Uluwatu Temple, Seminyak Beach,
    Nusa Dua Beach, Garuda Wisnu Kencana Cultural Park,
    and Tanah Lot Temple. Then Gerald made a map to
    facilitate his journey. On the first day Saturday, October 14,
    2023, he visited Nusa Dua Beach with coordinates (5,4),
    then continued his journey to Garuda Wisnu Kencana
    Cultural Park with coordinates (-6,1). (Selama 3 hari di Bali, Gerald beserta keluarganya
    mengunjungi beberapa tempat wisata terkenal. Diantaranya adalah Kintamani Highland, Pura Luhur
    Uluwatu, Pantai Seminyak, Pantai Nusa Dua, Taman Budaya Garuda Wisnu Kencana, dan Pura
    Tanah Lot. Lalu Gerald membuat sebuah peta untuk memudahkan perjalanannya. Di hari pertama
    Sabtu, 14 Oktober 2023, ia mengunjungi Pantai Nusa Dua dengan koordinat (5,4), kemudian
    melanjutkan perjalanan ke Taman Budaya Garuda Wisnu Kencana dengan koordinat (-6,1).)

    3. Plot the map drawn by Gerald onto the Cartesian plane. (Prediksikan peta yang telah
    digambar oleh Gerald ke dalam bidang kartesius.)

    4. Predict the slope of the path that Gerald has traveled. (Prediksikan kemiringan jalur
    perjalanan yang telah dilalui oleh Gerald.)

    In addition to enjoying tourist attractions in Bali, Gerald and his family


    also took the time to worship at the temple. On Sunday, October 15, 2023 they
    visited Tanah Lot Temple. Many people worship there so that it consumes a lot
    of incense. Fortunately, Gerald brought incense from his house. One stick of
    incense is 14 cm long. Every 4 minutes, the incense will decrease in length by
    about 2 cm. If the length of the incense stick after burning for x minutes is y
    cm, then the following data is obtained: (Selain menikmati tempat wisata di
    Bali, tidak lupa Gerald bersama keluarganya menyempatkan waktu untuk
    beribadah di Pura. Pada hari Minggu, 15 Oktober 2023 mereka mengunjungi
    Pura Tanah Lot. Banyak orang yang beribadah disana sehingga menghabiskan
    banyak sekali dupa. Untung saja Gerald membawa dupa dari rumahnya. Satu batang dupa memiliki
    panjang 14 cm. Setiap 4 menit, dupa akan berkurang panjangnya sekitar 2 cm. Jika panjang batang
    dupa setelah dibakar selama x menit adalah y cm, maka diperoleh sebuah data sebagai berikut :)

    5. Predict how many cm the incense stick decreases every one minute. (Prediksikan berapa
    cm batang dupa berkurang setiap satu menit.)

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