CPM Homework Help : A2C Problem 12-101

For each equation, identify the curve, write the equation in graphing form, state the locator point, and draw the graph.

$2x^{2} + y^{2} − 4x + 6y − 7 = 0$
Hint (a):
Complete the squares.
More Help (a):
$2\left(x^{2} − 2x + 1\right) − 2 + \left(y^{2 }+ 6y + 9\right) − 9 − 7 = 0$

$3y^{2} − x^{2} + 12y = 0$
Hint (b):
Complete the squares. Notice that the x² term is subtracted.
Answer (b):