a. a. Grafik fungsi f(x)= x
Jika menggambar grafik dengan melalui titik-titik (0,0), (1,1), (2,2) dan seterusnya akan terbentuk grafik (a)
X | 0 | 1 | 2 | 3 | 4 |
Y | 0 | 1 | 2 | 3 | 4 |
a. b. Grafik fungsi f(x)= x2
Grafik f(x)= x2 bertitik puncak pada (0,0). Jika kita masukkan titik tersebut akan terbentuk grafik (b)
X | -3 | -2 | -1 | 2 | 3 |
Y | 9 | 4 | 1 | 4 | 9 |
c. Grafik fungsi f(x)= x3
Grafik f(x)= x3 jika dimasukkan ke dalam titik bidang koordinat Cartesius makan akan terbentuk grafik (c)
X | -3 | -2 | -1 | 0 | 1 |
Y | -27 | -8 | -1 | 0 | 1 |
d. Grafik fungsi f(x)= √x
Fungsi f(x)= √x , nilai x akan pasti dalam bentuk bilangan positif
X | 0 | 1 | 4 | 9 | 16 |
Y | 0 | 1 | 2 | 3 | 4 |
e. Grafik fungsi f(x)= |x|
Fungsi f(x)= |x| , nilai f(x)=y akan pasti bernilai positif
X | 2 | 1 | 0 | 1 | 4 |
Y | -2 | -1 | 0 | 1 | 2 |
f. Grafik fungsi f(x)= 1/x
Fungsi f(x)= 1/x, nilai x ≠ 0. Grafik yg akan terbentuk seperti gambar (f )
X | -2 | 1 | 1 | 2 | 3 |
Y | -1/2 | -1 | 1 | 1/2 | 1/3 |
Equation | How to transform Graph y=f(x) to Obtain Graph of Equation |
y=f(x) + c | Shift c units upward |
y=f(x) – c | Shift c units downward |
y=f(x – c) | Shift c units to right |
y=f(x + c) | Shift c units to left |
y= - f(x) | Reflect about x-axis |
y=f(-x) | Reflect about y-axis |
y=cf(x) , c>1 | vertically stretch away from x-axis by a factor c |
y=cf(x), c<1 | vertically shrink toward x-axis by a factor c |
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