Question

consider the circle whose equation is (x+5)^2 +(y-4)^2=169.
which of the given points are a. inside, b. on, or c. outside the circle?
A=(8,4)
B=(16,0)
C=(-18,4)
D=(-10,0)
E=(-13,13)
F=(0,16)
a._______________ b._________________c.__________
please check my answers!!!!!

Answer 1

a. E
b. A,C,F
c. D,B

Answer 2

put those values of x and y in the equation

if you get <r, then they are inside the circle
if you get =r, then it's at eh point of circle
if you get >r, then it's outside the circle
rest of the job is yours
best of luck

Answer 3

oh you can do that? I thought there was an easier way instead of drawing a graph!! I drew it.. but I wanted to make sure that I was accurate.. thanks!