- #1
lucifer_x
- 15
- 0
Homework Statement
9x² + 9y² - 6x + 12y - 22 = 0
Homework Equations
The Attempt at a Solution
i got this far but can't finish i don't know what to do:
3(3x² - 2x + 1) + 3(3y² + 4y + 4) = 40
lucifer_x said:i don't know what half of 2/3 is or 4/3 because if i know that then i can square them and that's it
The formula for finding the radius of a circle is: r = d/2, where r is the radius and d is the diameter of the circle.
To calculate the coordinates of the center of a circle, you can use the formula (x,y), where x is the x-coordinate and y is the y-coordinate. The coordinates can be found by determining the midpoint of the circle's diameter.
No, the radius of a circle cannot be negative. It is a measurement of distance from the center of the circle to any point on the circle's circumference, and distance cannot be negative.
The radius of a circle directly affects its area and circumference. The area of a circle is calculated using the formula A = πr², so as the radius increases, the area also increases. The circumference of a circle is calculated using the formula C = 2πr, so as the radius increases, the circumference also increases.
The radius and diameter of a circle are related by the formula d = 2r, where d is the diameter and r is the radius. This means that the diameter is always twice the length of the radius.