Asosiy tarkibga o'tish

9.6-bo'lim : Qutb koordinatalari

11. Quyidagi qutb tenglamasining grafigini chizing.

\[r = - 14\cos \theta \]
Yechim

Buni quyidagicha qayta yozishimiz mumkin:

\[r = 2\left( { - 7} \right)\cos \theta \]

va shuning uchun biz ushbu bo'limdagi eslatmalardan bilamizki, bu oddiygina radiusi 7 va markazi \(\left( { - 7,0} \right)\) bo'lgan doiradir.

Shunday qilib, bu funktsiyaning grafigi.

The graph of \(r = - 14\cos \theta \). It is a circle of radius 7 centered at \(\left( { - 7,0} \right)\), so it runs from \(x = - 14\) on the left to the origin on the right.