Point p (1, 7) is located on circle c. the center of circle c is (-2, 3). what is the radius of the circle?

Radius = 5 units

Step-by-step explanation:

We can use the formula of getting magnitude of a line joining two points;

(x1, y1) and (x2, y2)

Length = √((x2-x1)² + (y2-y1)²)

Therefore;

In this case the radius will be; PC

Length of PC = √((3-7)² + (-2-1)²)

                      = √((-4)² + (-3)²)

                      = √(16 +9)

                      = √ 25

                      = 5 units

Thus the radius is 5 units

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:

$6.42

step-by-step explanation: