Find an Equation in Cylindrical Coordinates for the Equation Given $$9 x ^ { 2 } + 9 y ^ { 2 } = 8 x$$

question 89

Multiple Choice

Find an equation in cylindrical coordinates for the equation given in rectangular coordinates. $$9 x ^ { 2 } + 9 y ^ { 2 } = 8 x$$

• A) \(r ^ { 2 } = \frac { 8 } { 9 } \sin \theta\)
• B) \(r = \frac { 8 } { 9 } \sin \theta\)
• C) \(r = \frac { 8 } { 9 } \cos ^ { - 1 } \theta\)
• D) \(r = \frac { 8 } { 9 } \cos \theta\)
• E) \(r = \frac { 9 } { 8 } \cos \theta\)

---

Definitions:

Cloned

Cloned refers to the process or product of creating a genetically identical copy of an organism or its cells.

Tumor Suppressor Gene

A gene that protects a cell from one step on the path to cancer. When this gene is mutated to cause a loss or reduction in its function, the cell can progress to cancer.

Growth Factor Gene

A gene that codes for a growth factor, which is a naturally occurring substance capable of stimulating cellular growth, proliferation, and cellular differentiation.

Oncogenes

Genes that have the potential to cause cancer by transforming a normal cell into a tumor cell when mutated or expressed at high levels.