What is the result of adding these two equations? 5
x
−
9
y
=
1
−
7
x
+
2
y
=
−
5

5x−9y
−7x+2y
​

=1
=−5
​

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32