Only need help on number 5 and 6

5) since (x-a)^2+(y-b)^2=r^2

plug in (-5,2) as (a,b) and r=3

Making the equation:

(x+5)^2+(y-2)^2=9

6) (x-0)^2+(y-0)^2=r^2

since we have (0,5)

0^2+5^2=r^2

Final equation: x^2+y^2=25

the two may have that, even a breakdown is probably offered

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,