Answer:
y ≠ 0
Step-by-step explanation:
The function (y + 3) / (2y) is defined for all y except 0 (division by zero is not permitted). Thus, the answer here is y ≠ 0
Answer:
Center and radius of the circle of the equation
center = ( 4,9) Radius = 1
Step-by-step explanation:
Given -
Equation of circle is 
The equation of circle is represented by

where a and b are center of circle and radius r
Comparing these equation
then a = 4 and b = 9 and r = 1
Step-by-step explanation:
-9x-4y=1....eq1
3x+3y=3.....eq2
multiply eq2 by 3
to get
9x+9y=9....eq3
add eq1 and 3
0+5y=10
5y=10
divide both sides by 5
y=2
substitute y=2 in to eq1
-9x-4(2)=1
-9x-8=1
grouping of like terms
-9x=1+8
-9x=9
divide both sides by -9
x= -1
now the answer is
x= -1, y=2