# Math Help - locus help

1. ## locus help

Can this be right?

Find the equation of locus points that are one unit from (-5, 2).

Let P(x,y) represent the set of points. Using the formula for distance between two points . . .

$\sqrt{(x-(-5))^2+(y-2)^2}$

$(x+5)^2+(y-2)^2=1^2$

$(x+5)^2+(y-2)^2=1$

Does this compute to everyone? I don't understand how they go from $1^2$ to 1 ! What am I missing?

2. $3^{2} = 9$

$2^{2} = 4$

$1^{2} = 1$