Which interval on the graph could be described as linear decreasing?

a coordinate plane is shown. the line increases from x equals 0 to 2, then is horizontal from 2 to 4, decreases from 4 to 5, and then increases from 5 to 8.

a
b
c
d

Circle a has center of (2,3) and a radius of 5 and circle b has a center of (1,4) and a radius of 10. what steps will show that circle a is similar to circle b 1) dilate circle a by a scale factor of 2 2) translate circle a using the rule (x+1,y-1) 3) rotate circle a 180 degrees about the center 4) reflect circle a over the y-axis