In the coordinate plane, which equation describes the locus of points 5 units from the point (–2, 2)? (x + 2)2 + (y – 2)2 = 5 (x – 2)2 + (y + 2)2 = 25 (x – 2)2 + (y + 2)2 = 5 (x + 2)2 + (y – 2)2 = 25

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

13.46

step-by-step explanation:

16.80 x .20 = 13.46