algebra
posted by ant on .
What number is used to complete the square for the equation y^2 + 16 = y?
a) 64
b).25
c) .25
d) 64
a

y^2 + 16 = y?
1y^2 +1 y = 16
(1/2)^2 = 1/4 = .25 {so c}
y^2 + y + .25 = 16+.25 = 15.75
(y+.5)^2 = 15.75