Question

Complete the square and write equation in standard form and give center and radius. -___- PLEASE HELP

Answer 1

x^2+y^2+2x+8y+17=19 Please show steps :'(

Answer 2

y do u have a sad face at the end of the ques

Answer 3

This is sooo difficult @The.Great.Don

Answer 4

What equation is this?

Answer 5

you're setting up oranges with oranges and apples with apples

Answer 6

[(x^2 + 2x + c^2) + (y^2 + 8y + d^2) \]

Answer 7

c^2 = 1 and d^2 = (4)^2

Answer 8

(x^2 + 2x +(1)^2) + (y^2 + 8y + (4)^2)= 19

Answer 9

\[(x^2+ 2x +1) + (y^2 + 8y + 16)=19 \]

Answer 10

Yes combining like terms!!

Answer 11

Are you awere of : c^2 + d^2 =17
or (1)^2 + (4)^2 = 17

Answer 12

so we do not need 17 anymore cause we already have it in the equatiaon as the sum of c^2 +d ^2

Answer 13

yeah right

Answer 14

exactly is the clue combining then find the c^2 and b^2 and after that you're almost done

Answer 15

\[(x^2+ 2x + 1^2) \] can be written as: \[(x+1)^2 \]

and \[y^2+8y+(4)^2\] can be witten as:
\[(y+4)^2 \]

Answer 16

therefore :
\[(x+1)^2 + (y+4)^2 = 19 \]

Answer 17

and that's all

Answer 18

Wow thank you..

Answer 19

now could you find the center and radius: r ^2 = 19 --> r =sqroot (19)

Answer 20

and the center is way easy..

Answer 21

Oh gosh @rock_mit182 im still blurry how you got the 1..& OMG! My bad 19 was supposed to be 9!

Answer 22

did you find the center ?