### Home > PC3 > Chapter 10 > Lesson 10.2.3 > Problem10-145

10-145.

Rewrite each of the following equations in graphing form, identify the conic, and sketch the graph.

1. $9x^2 + 4y^2 - 36x + 24y + 36 = 0$

$9(x^2-4x+?)+4(y^2+6y+?)=-36+9(?)+4(?)$

1. $4x^2 - 16x - y + 21 = 0$

$4(x^2-4x+?)=y-21+4(?)$

1. $16x^2 − 5y^2 − 64x − 30y = 61$

$16(x^2-4x+?)-5(y^2+6y+?)=61+16(?)-5(?)$

1. $2x^2 + 2y^2 - 12x - 20y = -58$

$x^2-6x+y^2-10y=-29$