Answer:
c
Step-by-step explanation:
The circle equation is in the format (x – h)2 + (y – k)2= r2, with the center being at the point (h, k) and the radius being "r".
Therefore (x – 1)2 + (y +5)2= 102
x2 + y2 + 1 - 2x + 25 + 10y = 100
x2 + y2 - 2x + 10y = 74
Answer:
3
Step-by-step explanation:

slope formula:
Answer:
C, 6
Step-by-step explanation:
31-13 is 18, 18/3 is 6.