From the diagram you can see that for all

This means that function is constant on the interval 
Answer: correct choice is C.
Answer:
1 is b and 2 is a
Step-by-step explanation:
Answer:
A.Because ,center is (3,2)and point is (-2-3) .
and answer is (x-3)2+(y+2)2=52.
Answer: PQ=15
Step-by-step explanation:
XY=(PQ+SR)/2
PQ+SR=2*XY
PQ+35=2*25
PQ+35=50
PQ=15