Friday

October 24, 2014

October 24, 2014

Posted by **confused-steve please** on Monday, December 3, 2012 at 11:34am.

2. write the equation of the circle in standard form. find the center, radius, intercepts.

x^2+y^2+16x-18y+145=25

please show work

- college algebra -
**Damon**, Monday, December 3, 2012 at 12:19pmparallel to y =7 is a horizontal line

y = 0x + 5

or y = 5

complete the square a couple of times

x^2 + 16 x = -y^2 + 18 y - 120

x^2 + 16 x + 64 = -y^2 + 18 y - -56

(x+8)^2 + y^2 - 18 y = -56

(x+8)^2 + y^2 - 18 y + 81 = 25

(x+8)^2 + (y-9)^2 = 5^2

center at (-8,9) radius 5 etc

**Answer this Question**

**Related Questions**

Algebra - graph the equation x-3=y (where do I plot the points?) find the ...

College Algebra - Find the slope intercept equation of the line with the ...

Math - I had an assignment containing 45 problems, and I am unsure of 4, can you...

Math - I had an assignment containing 45 problems, and I am unsure of 4, can you...

MATH - I had an assignment containing 45 problems, and I am unsure of 4, can you...

Math 116 - 1.Write an equation of the line containing the given points and ...

Math 116 - 1.Write an equation of the line containing the given points and ...

Algebra - 'L' has y-intercept (0,-3) and is parallel to the line with equation y...

colledge algebra - Find the slope‐intercept equation of the line with the ...

advanced algebra 2 - Find an equation for the line with the given properties: 1...