Tentukan sumbu simetri fungsi kuadrat yang memotong sumbu X dititik (5, 0) dan (9, 0) ....[tex] {2}^{2} = ....[/tex]:D
Answer (4)
Something may irritate it and the reaction the eye has is that it burns. Let's say something got in it, then it burns because something is touching the eye that irritates it and it burns.
Burning eyes can result from environmental irritants, dry eyes, infections, contact lens misuse, or digital eye strain. Each cause requires specific preventive measures or treatments.
The sensation of burning eyes can occur for various reasons, and understanding these can help address the issue effectively. This question falls under the subject of Health, and it is generally covered at the high school level.
Environmental Irritants: Exposure to smoke, smog, wind, or chemical fumes can irritate the eyes, leading to a burning sensation. Allergens like pollen, dust, and pet dander can also cause burning eyes.
Dry Eyes: Your eyes may burn if they are not well-lubricated. This condition, known as dry eye syndrome, can be caused by factors such as aging, certain medications, or long hours in front of computer screens.
Eye Infections: Viral or bacterial infections like conjunctivitis (pink eye) can lead to inflammation and a burning sensation. Symptoms usually include redness, discharge, and tearing.
Contact Lenses: Improper use of contact lenses, such as wearing them for too long or not cleaning them properly, can irritate the eyes and cause burning.
Digital Eye Strain: Extended use of digital devices can cause eye strain, leading to discomfort and burning. This happens because we tend to blink less when staring at screens, which dries out the eyes.
To alleviate the burning sensation, you should try to identify and eliminate the irritants. Here are a few tips:
Avoid exposing your eyes to smoke and strong fumes.
Use artificial tears or lubricating eye drops to relieve dry eyes.
Maintain good hygiene with contact lenses and replace them as recommended by your eye care specialist.
Follow the 20-20-20 rule to reduce digital eye strain: every 20 minutes, take a 20-second break and look at something 20 feet away.
If you suspect an infection, consult a doctor for appropriate treatment.
Understanding the reason behind burning eyes is essential for effective treatment. Always consult a healthcare professional if the issue persists or worsens.
Burning eyes can be caused by environmental irritants, dry eyes, infections, improper contact lens use, or digital strain. Managing these conditions involves avoiding irritants, using artificial tears, maintaining good lens hygiene, and taking breaks from screens. Consulting a healthcare professional is recommended if the discomfort continues.
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Soal 1Kalau misal sebuah fungsi kuadrat memotong sumbu X di titik x₁ dan x₂, maka sumbu simetrinya adalah:[tex]\boxed{x = \frac{x_1 + x_2}{2}}[/tex]Kenapa? karena fungsi kuadrat simetris terhadap garis vertikal yang berada di tengah-tengah akar-akarnya.Nah sekarang itu diketahui dua buah tiitik, (5, 0) dan (9, 0).Pada koordinat titik yang berbentuk seperti diatas itu memiliki dua komponen, simpel nya sih kayak gini:(5, 0) ⇒ (x, y)(9, 0) ⇒ (x, y)yang arrtinya x₁ dan x₂ nya adalah 5 dan 9. Kemudian yang ditanya adalah sumbu simetri fungsi kuadrat, kita tinggal masukin aja ke rumus nya tadi.[tex]\begin{aligned} x &= \frac{5 + 9}{2} \\&= \frac{14}{2} \\&= 7 \end{aligned}[/tex]Jadi, sumbu simetri fungsi kuadrat tersebut adalah x = 7.Soal 2Kalau misal ada aⁿ, misal n = 2 dan a = (misal) itu 3Yang artinya nanti jadi 3². Nah bentuk ini itu dinamakan eksponen, cara ngerjain nya itu tinggal a dikali jumlah n nya. Misalkan tadi 3², artinya:3 × 3 = 9.Di soal kita disuruh cari 2², berarti tinggal kayak yg diatas:2² = 2 × 2 = 4jadi hasil nya adalah 4
