Polar Equation

**Del** · April 2nd 2008, 12:10 PM

A curve with polar equation:

r= 44 / 4sinθ + 29cosθ

represents a line. This line has a Cartesian equation of the form
y = mx + b ,where m and b are constants. Give the formula
for y in terms of x. For example, if the line had equation
y = 2x+3 then the answer would be 2*x + 3 .

Please help!

**PaulRS** · April 2nd 2008, 12:18 PM

Remember that: $x=r\cdot{\cos(\theta)}$ , $y=r\cdot{\sin(\theta)}$ and $x^2+y^2=r^2$

**TheEmptySet** · April 2nd 2008, 12:25 PM

Originally Posted by Del

A curve with polar equation:

r= 44 / 4sinθ + 29cosθ

represents a line. This line has a Cartesian equation of the form
y = mx + b ,where m and b are constants. Give the formula
for y in terms of x. For example, if the line had equation
y = 2x+3 then the answer would be 2*x + 3 .

Please help!

I assume you mean this

$r=\frac{44}{4\sin(\theta)+19 \cos(\theta)} \iff r(4\sin(\theta)+19 \cos(\theta))=44 =$

$4\underbrace{r\sin(\theta)}_{y} + 19 \underbrace{r\cos(\theta)}_{x} =44 \iff 4y+19x=44$

So $y=-\frac{19}{4}x+11$

Thread: Polar Equation

LinkBack

Thread Tools

Display

Polar Equation

Similar Math Help Forum Discussions

Converting from a polar equation to a cartesian equation

polar equation

Convert rectangular equation to polar equation

Converting Polar Equation to Rectangluar Equation

converting polar equation to cartesian equation

Search Tags