Asosiy tarkibga o'tish

1.10-bo'lim : Umumiy grafiklar

15. Grafik kalkulyatordan foydalanmasdan \(\displaystyle 25{\left( {x + 2} \right)^2} + \frac{{{y^2}}}{{4}} = 1\) grafigini chizing.

Yechim

Bu deyarli standart shaklda bo'lgan ellips. Bir oz qayta yozish bilan biz uni quyidagi kabi standart shaklga qo'yishimiz mumkin,

\[\frac{{{\left( x+2 \right)}^{2}}}{{}^{1}/{}_{25}}+\frac{{{y}^{2}}}{4}=1\]

Endi biz ellipsning \(\left( { - 2,0} \right)\) markaziga ega ekanligini ko'rishimiz mumkin, chap/o'ngdagi ko'p nuqta markazdan \(\frac{1}{5} = 0.2\) birlik uzoqda, yuqori/pastki nuqta esa markazdan 2 birlik uzoqlikda bo'ladi. Mana ellipsning qisqacha eskizi.

The graph of the ellipse \(25{\left( {x + 2} \right)^2} + \frac{{{y^2}}}{4} = 1\).  The ellipse has center (-2,0) and is tall and narrow.  Its leftmost and rightmost points are (-2.2,0) and (-1.8,0) and its lowest and highest points are (-2,-2) and (-2,2).