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Gambar 1. Soal Prediksi USBN dari Iqbal Pratama |
Diketahui
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?y_1%3D-2x+1)
dan
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?y_2%3D3x-2)
berturut-turut adalah garis singgung kurva
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?y%3Df%28x%29)
dan
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?y%3Dg%28x%29)
dititik dengan absis 2. Jika
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?F%28x%29%3Df%28x%29+%5Csqrt%7Bg%28x%29%7D)
, maka persamaan garis singgung kurva
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?F%28x%29)
di titik
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?x%3D2)
adalah ....
Pembahasan D
Jika
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?y_1%3D-2x+1)
garis singgung
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?y%3Df%28x%29)
di titik berabsis 2 atau (
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?x%3D2)
), maka
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?f%282%29%3D-2x+1%7C_%7Bx%3D2%7D%3D-4+1%3D-3)
dan
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?f%27%282%29%3Dm_%7Bgs_y_1%7D%3D-2)
.
Jika
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?y_2%3D3x-2)
garis singgung
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?y%3Dg%28x%29)
di titik berabsis 2 atau(
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?x%3D2)
), maka
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?g%282%29%3D3x-2%7C_%7Bx%3D2%7D%3D6-2%3D4)
dan
Sekarang Kita akan menentukan persamaan garis singgung
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?F%28x%29%3Df%28x%29+%5Csqrt%7Bg%28x%29%7D)
di titik berabsis 2 atau (
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?x%3D2)
).
Mari kita tentukan titik singgungnya
Titik singgungnya di
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?%282%2CF%282%29%29)
dimana
![This is the rendered form of the equation. You can not edit this directly. Right click will give you the option to save the image, and in most browsers you can drag the image onto your desktop or another program.](https://latex.codecogs.com/gif.latex?F%282%29%3Df%282%29+%5Csqrt%7Bg%282%29%7D%3D-3+%5Csqrt%7B4%7D%3D-3+2%3D-1)
dengan demikian titik singgungnya adalah
Mari kita menentukan gradien garis singgungnya
sehingga persamaan garis singgungnya
atau
atau
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