Rewrite in rectangular form: r = 5.

(1 point)
Responses

x squared plus y squared equals 25
Image with alt text: x squared plus y squared equals 25

x squared plus y squared equals 5
Image with alt text: x squared plus y squared equals 5

x + y = 5
x + y = 5

Start Fraction x squared over 25 End Fraction plus Start Fraction y squared over 25 End Fraction equals 25
Image with alt text: Start Fraction x squared over 25 End Fraction plus Start Fraction y squared over 25 End Fraction equals 25

1 answer

The equation \( r = 5 \) represents a circle in polar coordinates, where \( r \) is the radius. To convert this to rectangular form, we can use the relationship \( r^2 = x^2 + y^2 \).

So we have:

\[ r^2 = 5^2 \]

This simplifies to:

\[ x^2 + y^2 = 25 \]

Thus, the correct rectangular form is:

x squared plus y squared equals 25.